So having built mine I made another observation with the layshaft fitting...
If you take just the layshaft and a bearing...and slide the bearing over the short stub on the layshaft you'll see that the stub shaft on the layshaft is longer than the width of the bearing.
When you assemble the two halves together and close it shut this tiny bit of shaft that sticks out then rubs on the bottom of the flat bottomed bearing pocket in the casing...making the shaft bind tightly.
Seeing there is plenty of wall thickness in this area, I very carefully took a drill to the case and drilled a small countersink (it could really do with being a flat bottomed counterbore....but I don't have any tools that would do that) into the middle of the flat at the bottom of the bearing pocket...giving the end of the shaft it's own pocket to go when it sticks through.
Then when you sand down the spacer as per the instructions you only need to just sand it a tiny tiny amount, if at all...just to loosen the fit a touch...literally just a few slides over the paper is needed to make sure it's completely free spinning.
Result...layshaft with negligible float that does not bind!
Note to CML...gearbox could really do with that extra pocket adding in to the machining, like the B4 gearbox has...just to make sure the shaft (and inner bearing ring) can spin in free air when it's assembled
