You'll be fine going to 14lbs. I went from 15 to 14 due to wrist problems (which caught up to me finally and has kept me from bowling for over a year now) and it was a good switch til my hand/wrist finally broke lol. I didn't lose any hitting power. I had my first 300/800 with a 14.6ish pound ball.
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- Brian
http://BeansProShop.com

My average went UP over 14 pins almost immediately after I upgraded from 14 to 15 pound balls last summer.  I think that one pound made quite a difference.

i would say depends, for oily lanes, u have to roll more, so 15 lb is a better idea

now for drier lanes, 14 is fine, at least for me, since im speed challenged
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When a house bowler misses the mark, misses the break point and strike, for many ppl its called a wallshot. When a pro does that its call adjustment

When a house bowler gets his finger stuck in the ball and fall on the lanes, for many ppl its called lame bowler. When a pro does that its called the Machuga flop! ha i like this one.

having went threw that transition several times due to shoulder injuries that keep comming back. my avg. has stayed the same with 14 or 15lb stuff. my speed hasnt really changed but the breakpoint has changed just a little as well as foot work once you get your timing back you wont see much of a difference you'll get a little more deflection. may have to simply go with stronger drills or stronger balls

i switched from 15 to 14 a few years ago and have to say that my average went up do to the fact that going a pound down has let me increase my speed and made me be more consistent with my release also get alittle more rotation on the ball which has helped my pin carry greatly so i think you will be fine

No need to worry over an ounce or two. I wanted a ball which had been discontinued, but could only find one that weighed 14.0 before drilling.

 After drilling, the ball weighed in at 13lb 13oz. I then proceeded to shoot 279-745 with it that evening.

 Switching to 14lb has been something I have not regretted, and I didn't even have to. I had done it several years ago, due to a wrist problem (which healed), but had gone back up to 15lb. Got one of my old 14's out one night because I hadn't been able to find a 15lber to replace it, and bowled my highest series of the year, so I made my mind up to stay at 14lbs and have ever since.

 14lbs is easier on my hands, easier to hit my target with, and strikes just as much (if not more) than heavier balls, at least for me.
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Good transactions list in my profile

Drrev2000 - I am dropping down for a few reasons. One would be to get more speed and revs. Another is to see if it will correct a release problem I am having. Some of the guys that I bowl with have been using 14# and they love them. From bowling some tourneys the later I get into them I get some elbow and shoulder pain.