Ok ok I confused you and me.
"semi aerobic" as you state, is going to be better (resting 60 seconds) than 120.
if you are going to try and get an aerobic effect from a low rep template, then you just need to make sure what you're doing is safe, in terms of moving very heavy weight for minimal reps.
i suppose I just wanted to get feed back from you, with the question I asked.
doing the workout you do now....using the same exercises, if you increased the time per exercise and reduced the rest time to 3 seconds, how long would you be able to maintain that intensity of work.
I think you'd be doing pretty well if you could maintain that pace for more than 20 minutes, your heart would be reading 220 and you'd be puffing like a train.
imagine if after 3 months of this sort of workout you doubled the KG's you where pulling and pushing.
youd be one fit, strong looking mofo.