i would say they look to be very similar in there box reaction but i haven't seen a ball that takes surface change like the cell, its truly one of the most versatile balls ive thrown
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Only throw the good stuff, Roto/Global.
www.bowlsk.com/view-profile.html

Watched a few Siege's being used at the Mini Eliminator here is Vegas yesterday, great midlane and backend motion on slick lanes.

Very impressive ball from Brunswick one of best rolling balls from them for oil in years.

Also watched Python's being used by very high rev players, actually very clean and smooth yet strong back end reaction.

Brunswick might be on it's way back up the food chain, look's like good stuff and I cannot afford anything anyway just saying what I think.