Hello Mark,
I bought your book using Amazon, and after reading it back to back, I've started the basic 10-week program.
the program is doing wonders! i'm really looking forward with anticipation for each new week (i'm on week 7 now)
in the program, the way i see it, i have 4 days of workout a week - and the other days are just for rest (please correct me if i'm wrong).
what i wanted to ask is, should/may i having some push ups and chin up during the resting days? would it interfere with the advanced my body is gaining with your program?

looking forward for guidance

with kind regards,
Vlady