had to change the surface of mine about 5 times, before it saved any energy.
Still good enough for 299, lol but the last shot just edged a little to far into the dry and burned off a tad too much energy.
so far a different look than the original throttle, my original throttle actually seems to have a bit more backend than this ball, this ball is more even and controlable.
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I am Canadian Dude! GOO BIG FIN!!! MIKA K ALL THE WAY!