i'm going to start doing CW's Totaly Body Training and was just curious about the exercises. would it be best to pick exercises in a weekly group? then pick new set the following week? would it be best to pick exercises for a two week period group? would it be best to pick different exercises for ea...

thanks.

i do belong to a gym that has a pull down machine. they also have a weight assisted pull up machine that has a bar you stand on and you can use weight to "help" you up. is that not good to use?

i'm about to start CW's TBT and want to do pull ups as well but can't do many.

is it ok to use the pull up machine that uses weight assist on your feet until i can do them without? would lat pull downs be better?

thanks.