Another Clyde here, about like you at 6' 240; I recently started commuting about 6mi ea way (had to move closer to work to do it -- the 26mi ea. way from the old house I could only manage about once a month!).

Keep it up; if it helps, think of it this way: you've got some awesome bikes there, that cost a pretty penny. You need to bike commute so you can use them enough to deserve them! (otherwise it's money down the drain)