Keep in mind that I haven't thrown any of the newer releases that you mentioned in your post.  Something there might be an option with the right surface prep.  A strong ball drilled somewhat weak with just a little surface is what works for me.

I have a bit more hand than you, but am far from a cranker.  I think you'll have to do a bit of experimentation to see what exactly works for you.  For me, it's been my Black Widow Bite (see picture, now has double thumb weight hole) at 2000 abralon.  For me, it's nice and clean through the heads, reads the mid lane just the right amount, and makes a nice move on the back end.  I have several balls that are stronger, mostly earlier, that hook too early and don't save enough for the back.  I have others that are cleaner through the heads and mid lane, but don't recover enough.  It's a delicate balance that's likely to be different for every bowler and lane condition.

Take a variety of balls out to your intended lane condition and take some notes.  If it's too early, sand it finer or add a little polish and see if will still grab down lane.  If it's too weak, remove the polish or sand a little finer to see if it will be clean enough through the front part of the lane.

On Edit, for some reason, I was assuming (why I don't know) that the OP was talking about med/heavy lane conditions.  For a medium oil house shot, I have tons of options.  Of course, swinging the ball is more of my "A" game, even being medium handed at best.  My aging Nighthawk M2 does the trick inside most nights.

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Ron Clifton's Bowling Tip Archive

Edited on 7/9/2009 9:52 PM

I look for something with a Pearl Coverstock.  The old Fired UP was great for this kind of thing.  The only other advice I have is to drill with a pin up.  It always you to throw the ball harder.  If you use a pin under the finger drilling you have to get softer in order to get the corner pins out. But then again that is just me...
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Raceway Lanes FOREVER!!! ROYAL PIN You ARE WHATS WRONG IN INDY!!!!
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Storm 2nd D pin over ring finger
Columbia300 Perfect Rival pin above the bridge
Storm Rapid Fire Pearl Pin above ring finger
Columbia Messenger Low RG stacked label
Brunswick Inferno Pin above Bridge
1 tropical storm pin down below the bridge

yea im a fan of strong pearls, for low-revvers you have to have something to come off the dry hard
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Storm Virtual Gravity
Morich Awesome Finsih
Brunswick Avalanche Solid
Track Equation
SPARE

I also have 25-300 RPM and play rather slow, and for me getting "deeper" can have 2 reasons:
- either the lane just dries up in the head arae and I need fresh head oil to get the ball down the lane.
- the pattern (mostly THS and derivates with crowned patterns around here) just allows much room and recovery.

In the first case, I just follow the flow of lane transition and gradually move deeper. Most of the time I stick with the current ball at hand, I might change hand positions, though, to adjust length and sometimes overall hook.

In the second case, esp. when the lane is fresh, I like to use solid pieces, e. g. my Frankie May Gryphon (pin under ring, about 4.25x4.25, surface 1.500 grit wet sanded) or old Fuze Eliminator (4x3, surface 4.000 Abralon) that allow lots of recovery and react well to release changes. Both have high differentials, and a sheen surface is a good compromise for me and my style for sufficient length in the heads (I use both on medium to oily shots).
Lines with feet aroung 30th board and targets at 3rd arrow and deeper are possible without much effort, even though the lane must yield such a line and long ways, and basically I prefer a straighter path between 2nd and 3rd arrwo because the reaction at the break point will be easier to control and read.
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DizzyFugu - Reporting from Germany

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Edited on 7/10/2009 3:45 AM

I prefer something with arching type motion, useing a lot of side roll. Maybe like a solid with a control drill. Pearls tend to over/under for me on most conditions. Then again that's the shot I end up haveing to play that most of the time during league. Not a high rev guy either.
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Bowling is like life. Sometimes you are the ball. Other times you are the pins.

I've got a 4000 abralon Perfect Rival drilled pin 1" above ring finger that gets the job done.
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Mr. Natty Boh
"OH BOY, WHAT A BEER!"
Natty Boh Bowling Team

well for me i just do it. simple but it's just me i don't know how to explain it. If I were to be playing outside i would be playing with quite a bit of speed and up the back of it to keep it on line. but to move inside i would add a step onto my medium speed approach but be in the same spot and change my rotation to be alot of side roll. my key to playing inside and out i find is where i throw it to. on the lanes i bowl on they are old wood so there is going to be a 'predominant track area' where there is alot of friction so i tray to throw it to that track area at the breakpoint so the ball will not just slide when it reaches friction