That method of pushing the pistons back with the pads in feels brave to me as I always worry the hose to the syringe might pop off!
I did a bleed, although the back still feels softer than the front, still super powerful. Pushing the piston back with the cap off was a bit messy (bleeding topless with just an open lever reservoir). I’ll try again on the back using the technique in that video to do a calliper end bleed with the lever held down.