If you would change . . . Why?

If not . . . Why, Not?

I personally do it.
(Of course, you have to know your equipment, pretty well.)

I've done it when I'm in the zone, and carrying the house, and really focused.
I'll notice I'm tripping high 6 pins.
--------------------
Duke Harding

++++++++++++++++++++++++++++++++++++++++++++
I'd Rather be Lucky than Good.

I would probably try a slight move with my feet or an adjustment to my hand position before I'd try switching balls. I think those moves can be equally effective and are a lot more predictable than a sudden ball change. Most people don't know their equipment well enough to make a move like that out of the blue, so, if it's just a matter of wanting to stay dead flush, I think a hand position change is the way to go. I was doing that last night when I could see my ball rolling up earlier and earlier. Sure, I had another ball at the ready, but the hand position allowed me to keep the good feel and delay the reaction just long enough to keep me smashing the rack when the lanes changed. But that's just my .02. I can't say that I'd never try a ball change in that situation, but that would be the last resort after I considered feet or hand position differences.
--------------------
I can't bowl 300, but I can bench 315 : )

No, only a lefty would change on a string.

I’ve obviously have the right breakpoint for carry, I don’t carry anything that would be only a 1 board difference with the same shot shape. I would either move or try to be firmer with the shot.

It would depend on how the reaction was changing. If I noticed it starting to finish a little early, probably. If it was just a matter of roll, where a 1 or 2 board adjustment could take care of it, no, I wouldn't.
--------------------
-- The way we see the problem is the problem.

I don't think I'd change balls until I didn't strike.  I have however on more than one occasion thrown a 240 game and change.  Every time someone on the other team makes some wise*** comment....and then I shoot 250 with the new ball.  Sometimes there is only so far you can move even when you are getting a good reaction before you have to make an equipment change.
--------------------
The clock on the wall says 3 O'Clock...last call...for Alcohol!
"I love a martini -- but two at the most. Three I’m under the table; Four, I’m under the host."  Dorothy Parker

During a league I bowled in last summer I started with my pearl particle and shot a 279 with 11 strikes and a 7 pin in the middle. During game two I threw a strike and left another 7 pin and switched to my El Nino Wrath based on the reaction of the ball as it left the 7 pin. My father thought I was nuts for changing a ball after 14 pocket shots. I proceeded to string the final 10 with the other ball for a 280 game, and he didn't question my judgement after that.

Normally if I start with 7 or 8 in a row, I wouldn't change balls...but it all depends on how the ball is entering the pocket and what seems to be moving off the lane last....

Matt