Originally Posted by
JJBinks
I later tried to put a higher gap. With the same result. I was looking at a set-up sheet for my home track from Cyrul and unless I misread it, and he set his gap to .15mm
That sounds more like an endplay adjustment, not gap. You want at least .5mm gap between the shoe and the bell. Once that is set, you can adjust the play down to .1 to .2 with shims behind the bell.