HI I'm a new member on the Snowcat Forums site. I'm looking to purchase a Snow Trac or Snow Master but there's a question I can't find any info on re: discussing the differences between the Snow Trac's and the Snow Master's performance in snow. I'm assuming that the Snow Master performs significantly better (wider longer tracks) in deep snow compared to the Snow Trac. True? and.... how deep is too deep for these machines? Thanks.