Now before anybody gets on to me, I tried SEVERAL searches. It may be that I didn't type the right word combination but I didn't see anything that addressed one versus the other. Now the main benefit is that I already have the t-5, supposed to be good condition. My main question would be is there any large advantage to swapping in a ka 5 speed instead of the BW t-5? From reading it seems the bw would need less machining but seeing as this is a weekend thrasher that I want to last if the ka 5 is significantly better it might be worth the extra up front. Would prefer to do this once. Thanks for the help