I started just after 3 squatting at home. Then had to call work and then headed to the gym. Was back home just before 4:30. So allow 15-20 minutes walk/locker room time. I also had to wait for a few bits of equipment and did bump into a friend. About an hour for the 10's I found. Nearer to 70/80 minutes for the 15's as I was so gassed, though that was fasted. 90 second rests for both 10's and 15's, exercises like laterals, curls and calves I just rested till recovered around 45-60 seconds.
I found that. All of my 10's were really quick sessions but that went away again when I got onto the 5's . Spent 3.5 hours in the gym last week . I was having a really poo session and couldn't find any energy. Most of my 5's have been longer the rest by a good 40-50%, though I can't quite work out why?
I'm seeing all of my strength again though, the higher rep days were a little odd because I was so used to low rep ranges in a powerlifting routine but now I'm back down to 5 reps I can see the changes, smashing pb's left right and centre .