@phl6953 -- Reading through my long response, I'm not sure if I directly answered your question. Short answer -- i use an analog stopwatch display on my smartphone to time my kegals. 1 set, 10 reps holding for 10 seconds each rep with 10 seconds rest between each rep, takes me 3 minutes and 20 seconds. Then I immediately start doing the fast twitch, about 6 - 8 sets, holding only about 2 seconds each rep with about 5 seconds rest between reps. Total time, less than 5 minutes. Hope this answers your question. Best wishes.