For the amount of resistance, I have it on the 30 resistance rod and I can do depending on expercise that 25 times. For some ab and leg exercises I can do about it 50 times. Should I increase the resistance if I'm doing those exercises? I also want to work my abs, should I just include that on the days I work out the rest of my body or do it on another day?

I also skate on wednsedays usually a fast skate and then I have games at different times during the week usually on the weekends. Does this effect when I should be working out? And should I use the tredmill or do some cardio on the days I'm not working out on the bowflex?

And I'm a Playstation 2 guy ;)