I just modded the pistons, (finally) in my H1 w/reeds. the cages are buried pretty deep in the intakes... the tips of the reeds are actually closer to the piston than on an RD(im running some really funky banshee cages from chariot performance) and PJ34's. low end trhottle response is crisp as a potato chip. between the new cages, finally cutting the holes in the pistons, and some fine tuning its pretty nuts down low, all the way up to indicated 9500. Trust me, its def still the feel of a triple. it can be done w/big cages, etc, but theres LOTS of tradeoffs. I have to say though, this one hasnt blown up yet. and it aint from lack of trying....
after todays final tweaking it was pulling about 300 foot 25-30 degree 2nd gear wheelies on the road (stock H1 gearing). and riding position is basically like doing a hand-stand on the tank... not ergo friendly at all.
is it worth it? eh. depends what you want. Johns reeds work great. (THESE ARE NOT JOHNS REEDS BTW, HE DID HELP W/THE HEADS THOUGH) BUT, if you want retarted drag-bike top end power, then might have to go another route as mentioned.



(and before somebody says it.. yes, i did the other 2 pistons...

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