not to burst your bubble (although i do like to take jab at you ;)), but 1 month is really not sufficient to realize your cardiovascular potentials. i think people generally recommend at least 2-3 months of acclimation, with the first few weeks consisted of jogs interspersed with walks. Your high FTP dictates that you won't have much issues aerobically, but i'm afraid that your bones and connective tissues won't be up to the task of handling the stress of running fast. Granted, you do a lot of off season cross training with crosscountry skiing, but I'm not sure if that simulates the pounding of fast-paced running.

Personally one of these days i'd like to break 5 minutes for the mile. Back 8-9 years ago when i was 10+ lbs heavier, I ran a 5:45 mile and 20 flat for 3k. I think i'm in much better shape aerobically, and one of these days i'd like to lace up my racing flats and give it another go.