Originally posted by Warboss Alex
They're fine for as long as you can make progress on 'em.
I hope I'll manage to widen my lats with them. The first time I did them, my lats burnt for 3-4 days. Unfortunately, I couldn't work out since then, because I've been out of town. I did them today and I hope I'll experience that soreness again tomorrow. I know soreness is not an indicator of a good workout, but at least I can feel I've worked them out enough.
BTW, today I did a light set + 3 heavy sets, with 12 reps each. Should I do less reps, or more sets, or what else?