Assume you have an hour and given a choice of 50 minutes of edging then release or get round one done quick as possible then work towards round two, which would you choose?

I personally have never had either so can't share experience, but given a choice, I think the edging session.

Both have there hazards.
With edging you could blow early, then what? MSOG attempt could never see round two.

So much anxiety.......