well i bought the sigma max 3cm few months ago having always been a rubi man before and will go with sigma in future.
on electric cutters i have had the the 9ml for more years than i can remember and the 10m even longer than that. must be getting on for 15 years .both still going but lost a few bits , but find that we use the overhead dual rail saws almost exclusively now. they are just more suited to the type of stone work i do. the 9m and 10m only came out couple of times last year and am thinking of selling them. they will do the right job for someone and a shame to just leave them redundant