I am currently on Atkins and I am committed to two pretty intense 90 minute swim squad sessions on Wed and Fri mornings.

I know the BFL recommendation for the aerobic component of exercise is specific and different than this, i.e. no more than 20 minutes each time with specific intensities describe.

I want to keep up my swimming sessions. Do you think BFL can be done and the muscles still rested?

If so, would a modified schedule be something like:

M - 20 min aerobic
T - Chest weights
W - Swim
T - Leg weights
F - Swim
S - Chest weights
S - Free day

Does the order matter so long as the alternating days are there or should a weights day follow a free day?