Did you have to install the squonking pin yourself? When I did mine the washer thing the squonking pin goes through popped out, first time I put it back in I put it upside down and squonking pin stick too far out, realised and turned washer over sits flush now...Love this set up but have a significant gap on the 510 pin about 2-3mm how do I adjust it? the picture above doesn't seem to have a gap!