Here's the situation. I recently bought a 2001 edge classic 600. I normally ride trails, however the private part of it was shut down, now the whole trail is useless. So here is my question, i ride between 6 and 20" of ungroomed snow. Basically in grass and the leftover stubble from the local farmers. What size lugs should i get? The 600 "big block" (American version) can really rip those 3/4 inch lugs in the ungroomed snow. I'm thinking 1 3/4... ish... What do you think?