Title says it all. I go easy on the 14 miles in but do intervals 14 miles home. The problem is that I don't have any additional time for training really, and was wondering if commuting, if done right on my 7200 miles a year, 600 vert / day, on a touring-type bike, is enough to train within in order to race MTB and do well.
I guess what I'm asking is "is 7200-8000 miles a year of 90% road / 10% MTB close to what is needed to be a top 10% amateur MTB rider?". Thoughts?