Commuting and TTing is different though, you don't go flat out planning to get to work where your legs feel like jelly and your stomach wants to invert itself.
That's my point, if you can managed your commute under 40 minutes with the start stop traffic without overdoing yourself, then 28 minutes TT shouldn't be much of a problem.
That's my point, if you can managed your commute under 40 minutes with the start stop traffic without overdoing yourself, then 28 minutes TT shouldn't be much of a problem.