I've tried it a number of ways...1 1/2 hours before workout I was taking 500 mg about 15 minutes before my novolin r injection, along with 100mg test suspension. I did JM's cream of rice routine and made an intra shake with pepto pro and gatorade powder. Gains were great, just came off a hard cut at the time so I stayed lean for quite awhile.
Now I take 250mg am and pm...rarely use insulin at the moment but when I do I am so insulin sensitive I only need 5 iu and get the same pump I used to get from 15 iu.