When I feel ready! Longer for large muscle groups, shorter for small groups. I just try to keep a good pace up without turning it into a cardio session!
Pretty long. I love to blast one all out set to absolute failure, give it 5 minutes or so then do the same on next exercise. With a warm up/ feel set of its same body part or a few warm ups if new body part. If I'm not happy that I hit true failure on a set I will drop weight a little and try again about 5 minutes later. On the occasion iv do a little volume work or supersetting ill give it about 30-60 seconds but don't count.
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