Stingo, I feel pretty good right now. I did a short, 8 minute, ab section yesterday and felt fine, then too. Thanks for asking!
However, 10 day ago, I did a bit longer of an ab workout along with my regular workout and felt it was maybe bordering on too intensive for me right then.
I am going to continue with a once a week ab workout, on Sundays probably, until January. I’ll either pop it up to 2 or three times a week, then.
I just don’t want to risk hurting myself; I think slower is better!