Quote Originally Posted by TonyL View Post
Yes, Pete, I also think it's brilliant that we have so many people like Jon who will put the work in, experiment etc. and then share their findings with all and sundry. Like he says, anything tighter than 3mm probably creates too much choking effect on most layouts, but I only base that comment on what I've learned from these many great people who are willing to share their knowledge.
Indeed Tone, I've been looking at long drills now starting at 3mm and working up in increments, may have to purchase some and have a play one day, I suppose finding out what size TP my Mercs and Supersport have already would help.

Pete