[Lee]

Dave, i did try a washer in between the piston and the clip, i didnt notice any difference to be honest when i did.

With regards to drill sizes its not as straight forward as you think but here they are

#57 = .043"
#56 = .0465"
#55 = .052"
#54 = .055"

If you want some for kiddy, i can get you some, i have to go to the shop anyway.

I ran mine again yesterday, it felt pretty good again but i was on BB greens as it was a bit damp, i only used it for 2 runs and when the track dried i got the B4 out to give it a run for kiddy.