[Chrislong]

You are welcome.
If you try anything that we haven't, or hasn't been mentioned - let us all know.

I am currently running my X-5 with standard belts, and standard gears all round.

One thing I have done recently, is with the layshaft gear on a shaft, I put it into a pillar drill and gently filed the internal sides of the belt support so they taper outwards. Isn't an essential thing, but if your belt runs to either side of the gear it stops the friction.... and I thought my transmission felt even nicer once done.... but it may have just been 'trick of the mind'

Also, we have been running a 2nd roller on the alloy belt tensioner, the 2nd on is further forward and as high as possible, so this one lifts the belt into the layshaft gear whereas the original one still tensions... but can only do this with small rollers, not the big black one.... im back to the big black one on its own now, and I think I prefer it.

Don't worry about a little skip on braking, I have my brakes turned down to 3/4 or less so its gentle to the belt. I encourage best efficiency at the cost of a few noises.. on power it can skip a little too, but I let my slipper absorb that.