And regardless, the point is moot now.
bloody Milwaukee m18 polesaw just stopped working. Packed it up and waiting for courier- they’d better sort it without quibble, it’s hardly been used.
then the bar bent on the m18 chainsaw. Putting it in the vice and it’s like cheese compared to a stihl or Oregon I have here- luckily a 181 bar mount is the right fitment.
But regarding the polesaw- turns out that with a bit of insulating tape to shim the tube up and a sand down of the driveshaft by 0.2mm, you can fit a stihl engine onto a husky polesaw shaft!
So now I have a Stihl engine that is older than the polesaw on it, which I have every confidence in the reliability of.
Time to treat myself to a new combi engine.