I am looking to buy the lane 1 chainsaw or storm natural for dry lanes. I bowl at 9 pm on second shift alleys. Also the alleys the first 20 feet are gurdian and the rest of the alley is wood. I am a stroker that throws the ball around 16-17 mph. Which ball would you recommend for this situation?

I would honestly go for a MoRich Mojave or a Razyr, my experiences with the chainsaw are it is very condition specific. I have a reasonably strong drilling on the chainsaw, and I can't use it unless the lanes are perfect. I can not swing the ball at all, it will not recover and It usually hooks at my feet. That ball is by far the most disappointing ball I thrown in a long time. I also have over a 500 rev rate and that ball goes straight as an arrow. Mojave is my go to ball when they are toast.

Link, Neptune, Rayzr, or the new AMF Hype (the urethane or resin verison) would work out fine on any dry lane shot.
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Only throw the good stuff, Roto/Global.
www.bowlsk.com/view-profile.html

Try L/LM Hornet.
You won't be disappointed.

I recently picked up the Natural for the same reasons you mentioned and I am very happy with this ball.  If you get a clean and smooth release, it will reward you because of the controlled length, yet strong & smooth roll through the pindeck.  I find I can also use it for spares as the added control gives me confidence in the accuracy of my shots.
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Spence Hayashi

For the most part, for dry lanes and spares I rely on my Roto Grip Neptune.  Reacts very evenly and, at least for me, won't over-react.
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University at Albany 2007
    -Let's Go Danes-

ROTO GRIP - King of Them All
STORM - The Bowlers Company

Harry E. Inglis 3/31/1915 - 2/3/2009

Thanks for all the suggestions so far. Will have to take a look at all the bowling balls suggested so far.