Through personal experience, I found the Suzuki piston to be a more durable item of the cast variety than the Honda, but I also have no great issue with using good caps to reduce the wrist pin hole size. For the record, forged pistons are alright. Both types offer their particular advantages.
However, if the cylinder is - or needs to be - 67 mm bore, this is the choice I would make. I have used them & rate them highly. They have good rings & are strong enough to withstand racing abuse:
http://www.scooterrestorations.com/lamb ... ly-67.0mm/It looks as though that may be the last available. I'm tempted to buy it myself, but offer you first dibs...
