I do these. I just call them RDL's.
Keep your knees a tiny bit bent. Keep the bar as close to your legs as possible. It's pretty hard to round your back, which is what most people do with
Stiff Legged Deadlifts. You can still pull a back muscle, but that's different.
It's really for hams, but it of course uses your back. I never had hams before I added these.
Just stick at a weight for a while, till you can do some higher reps. Then bump it up. I start at my 3 rep weight and keep going till I hit 8. (Well, normally I'm that patient). Try 6-10 if you just added them, and then ease lower, or go right to 3.
