Ok, I want to try to generate some layouts with this method.  All I need to know is your angle of rotation, and any angle you play on any shot.  Could be an angle you play on a house shot, broken down house shot, Shark pattern, Main Street, Stone Street, US Open, don't care.  Just think of the line you play and what angle you estimate it at, and I'll give you a dual angle sum to work from and you tell me if it's realistic.  Even if you change your angle of rotation on different shots, just say like the US Open, tell me what your angle of rotation is and what angle you throw at (if straight at the headpin from the dead center of the lane is 0, and from one side of the foul line to the other is 90).  I'm really hoping I can generate a layout for you without needing to know anything else, that's the point. 

Thanks!  I'd say the angle is closer to 10 degrees, but I'll calculate it both ways just for the hell of it.  So here's the deal, you base the ball choice on your speed, revs, and lane condition.  This definitely won't work if you pick a ball that's either too strong or too weak for you. 

Your rotation is 65 degrees, let's round your 4 degree angle to 5, for a total of 70.  Going into my calculator, that gets me to an ideal dual angle sum of 120.  That can be applied any way you want it, you could go 90-30, 60-60, etc.  The ratio and pin distance is up to you also depending on what shot shape you want.  Does a dual angle sum of 120 sound accurate or at the very least reasonable to work from? 

I've figured out it's definitely a "sweet spot" calculation, it doesn't apply if you go with a ball too weak or too strong for you or the condition.  If you're playing your A game, you pick out a benchmark ball, and I give you an angle sum of 120 to work from, is that anywhere close? 

I'm finding it hard to explain clearly, because I've heard "well what about condition?  ball speed?  rev rate?"  I'd factor all of that into ball choice and surface, because I really don't see the point of buying a ball that doesn't fit what you want and trying to drill it to fit you.  If you buy a ball that fits you and fits the condition, you SHOULD be able to use this method to get an ideal dual angle sum based on what angles you are playing or intend to play with the ball, because everybody has a reason for buying a ball, whether it's to play deeper, straighter, through carrydown, etc.  Considering that you pick the right ball, I haven't been able to poke a hole in this method yet, but lol that's why I'm asking people here . .

okay on the THS here:

my Rotation: 65 degrees (estimated from video using the overlay graphic)

As for angle I'll say about 4 degrees

I stand about 25 and shoot about10-12 at the arrows

heres a video if it helps.
http://www.youtube.com/watch?feature=player_embedded&v=lc8wdUMmKyw

Does a dual angle sum of 120 sound accurate or at the very least reasonable to work from

Well not a expert on the DA stuff. (hopefully you'll get some more knowledgeable people to test on)

But the 3 balls I have now the sum ranges from 125 to 135

90 X 4" X 40
90 X 4" X 45
90 X 4" X 35

So 120 seems close.

I was told my  Dual Angle Sweet Spot looked to be around Sweet Spot 90* +/-20,

I estimated it at a 100 +/-10

How are you calculating release angle?  Seems to me you are guessing at numbers.  For your whole system to work this needs to be a measurement and not a random number.  In your other thread you estimate you playing 20-7 as 45 degrees.  To play that you are probably setting the ball down around 27.  So your balls is 20 inches vertical in 42 or 43 feet horizontal.  Help a brotha out here.

And it may or may not even be worth anything, I just saw what I thought could be a correlation and am working through the logistics, but I AM seeing now that the release angles are going to be a lot smaller than I thought they'd be.  Playing a 45 degree angle would be pretty ridiculous and unneccesary . .

At some point you hit the law of diminishing returns.  This stuff is WAY beyond that point. 

If you've already got 2 dogs take them for a walk.  Or teach them how to ride a skateboard. 

They are relavant but not with what you are trying to do. Release angle is key. Angle on the lane isn't a constant. All of the bowlers other stats plus the lane condition plus the ball would have to ba calculated into the equation.

Its a nice idea.

To the Original poster Gizmo....please explain?

Regards,

Luckylefty