Not sure actually how many 1098 gearboxes lunched themselves where a quick shifter had been fitted but enough for it to become a “common” problem. A least a couple of owners on here went down the Nemesis route on their 1098Rs. Andy
As my 1098S is a road bike and I'm not chasing 10ths, I deleted mine. Had heard stories off buggered boxes, so it became the best reason to get rid. I might have said that before. Anyhow, I like using the clutch.
My 1098R came with a Translogic already fitted. I don't use it but it's still there. Not sure if the R gearbox is less prone to lunching itself with a shifter but not prepared to risk it!
Apparently there's a new part number for 4th gear, so that potentially says something about a common issue.