I'd go for a Moscow 3. For fell stuff a stable needle is much more important than a quick settling one. It's important to consider which hand you hold your map in when running. I use a right-handed, but I know plenty of right-handed people that use a left. I wouldn't worry about damaging it. I've had mine for a few years and have given it plenty of abuse. It's a bit scuffed and scratched, but still fully functioning. I definitely reckon Moscow are better than Silva for the price.