sWe

I'm considering buying a new main cutter. My current one is a Sigma, which works fine, but its age is starting to show. I'm looking for input from people who've tried any of the following ones:

Rubi TR 600 (tried a Rubi TS, but I didn't like the non-movable breaker)
Tomecanic Supercut 45
Montolit Masterpiuma P52


I'm especially interested in the Tomecanic, so input on that one would be great. The adjustible guide looks a bit flimsy. Is it?

BTW, has anyone tried a Husqvarna? They look a bit simple, but sturdy, and the breaking mechanism looks kinda cool.

Cheers.