It's hard to suggest anything without actually watching your game, even without knowing your exact specs (rotation, tilt, PAP etc.)
Depending on the drilling, surface prep and the style of a bowler, Titan can handle medium-light to medium heavy conditions. You need to have clean backends on heavier side though..
I tried couple of my balls,along with my Titan on 4 different conditions today.
41 feet Shark pattern, 39 feet ABC Masters, 37 and 35 feet sports shots.
Mine is drilled 4X5, box, no hole.
See my profile for my style.
On shorter patterns Titan was awesome. Adjusting with my speed and my release, I could either swing it inside or play next to the gutter. Inside angles seemed better with it. Not a big time skid/snapper for my style, but long and very strong. I had to be very consistent with my release on outside, other wise it was touch jumpy. My highly polished Velocity matched up better there. Does not like carry down, especially on 37feet pattern, I had to switch to my Intense with weaker release/higher speed.
On 39 feet ABC, I found the best and the most consistent way to hit the pocket is down'n shot on 10-13 boards with up the back release. It seemed predictable, long, yet very strong with end-over-end. Perhaps I could use some scuff with gray pad to knock the shine off.
On 41 feet Shark, it fitted well one step below my Intense. Definitely needed to be scuffed to knock the shine off. I would drill it for a bit less flare with pin below my bridge if I was drilling it specifically for this pattern. However, I don't think it will be a proper choice for a higher speed player on this type of condition.
I've also tried my Titan on more "fair" patterns.
It is very important to be more specific when defining "light oil". If you will be drilling it for medium-light THS, I would suggest 5 to 5-1/2 pin PAP distance, pin over fingers. I would kick the CG to the right about 5/8 inches. This will keep the ball legal while giving you enough room for an Xhole to tune the reaction. Ofcourse, you may need to adjust the cover. Probably you will be playing deep inside.
I strongly recommend that an experienced driller should watch your game and drill it accordingly. There are too many, "but"s, "should"s, "depend"s in bowling.
Hope this helps
Burak