350 Method

I got this progression method from Paul Carter at Lift Run Bang.Lift Run Bang 350 method It's a very simple progression I often use it for assistance exercises. It's similar to the double progression method in that you progress in reps before adding weight. Paul recommends two minutes rest, but I prefer 3 minutes rest. I'll sometimes two minutes for exercises like cable crossovers

With the 350 method, you aim for 50 total reps over 3 sets with 3 minutes rest between sets. You take each set to failure.  
Using weighted dips as an example. Dips with 10kg added weight.

• 23 reps
• 3 minutes rest 
• 14 reps
• 3 minutes rest
• 9 reps​

47 total reps.

You'll keep the same weight for the next workout.

• 25 reps
• 3 minutes rest 
• 16 reps
• 3 minutes rest
• 9 reps​

50 total reps. 
Now you've got 50 reps, you'll then add 2.5 or 5kg the next workout and build up the reps again.