I don’t like the bench blocks personally for gear. I prefer to have someone hold the board, but seeing as how it already takes 3-4 people on any given bench day boosting up to that 5th person can be a drain on everyone.
It’s mostly stable but if you notice, due to the angle of it in some videos only part of it is touching me. If you continue downward the block will rotate to flatten out against you. Which is okay, assuming it doesen’t screw your wrist positioning up, which sometimes it can.
The benchblocks are super handy though. Easy to go from 2-5 board with it. We also have a singular 1 boar bench block as well.
Mostly it does feel stable though, just got to play with how you’re going to use it.
As for sled dragging it really depends. If it’s post lower body mostly walking forward and rotating in backwards now and then. Sometimes I’ll do lateral, sometimes I’ll move it just by doing good mornings.
For the good morning variation, you just walk forward till the rope is taunt, drive your hips back, then when you push forward to come back up your hips move it ever so slightly. Just depends how bored I am.
For upper I’ll do rope presses, tricep extensions, bicep curls, rows, etc
Example: day after squats - use lower body for 90% of the time, then finish with some upper just to get the body slightly primed for the next day’s upper. Then flip flop for day after upper.