Well what can I say...
My 2004 EC300 hasn't seized, it still scares me to death when I want it to, it still lifts the front wheel whenever I want it to.
I haven't noticed any difference in performance, I just have extra money in my pocket to spend on spares for my EC300, spares for my GSXR, beer and red wine!
About another 60 hours before I'm due a new piston kit, so will maybe know a bit more then.
All the best, Dave.