Well, the 5S on the MM with the 8XL and 9/46 gearing with the stock 40 series tires works. I've only been able to run it around my sun room, but it cogs very rarely and then not badly at all. I wish I had know, I wouldn't have gotten the Compro. I could have held out for the MMM.

I guess, where the MM on 4S with the 7XL was giving me trouble, the 5S with the 8XL has a lower amp draw and it working.

I'm just waiting to see what Mike proposes that I do with this Compro. If I have to wait for it to get back from the Czech Rep, I might just sell it cheap when I get it back.