PrimeX Testo Max One way to get around limiting muscles is to pre-exhuast them prior to working other muscle groups. One example of this are your biceps becoming fatigued before lats on a row. Using an exercise that isolates your lats first, a straight-arm pull-down for example, gives your lats a harder workout than your biceps. This causes the lats to be exhausted prior and when doing rows, the biceps should not limit you.

http://www.supplementssupplier.com/primex-testo-max/