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I have found through experimentation that I get better results if I chose either SLDL or Romans and stick with it for a period of time, then my next series I switch it out. I've done all kinds of combos but see best results from one or the other. You might too 
If you want to work your hams/glutes that much (I do) I would add a different movement such as a step up. I like these best with a bar on my back as it helps my form but you can also simply hold 2 dumbbells and step up onto a flat bench with one leg (the other leg never touches the step). OR****try adding a lighter move like frog kicks or glute raises. You feel a little sissy at first but omg - I have seen the best results from simply adding a few of these in my routine. You aren't overtaxing your muscles with these but giving them that final burn.
If you want to work your hams/glutes that much (I do) I would add a different movement such as a step up. I like these best with a bar on my back as it helps my form but you can also simply hold 2 dumbbells and step up onto a flat bench with one leg (the other leg never touches the step). OR****try adding a lighter move like frog kicks or glute raises. You feel a little sissy at first but omg - I have seen the best results from simply adding a few of these in my routine. You aren't overtaxing your muscles with these but giving them that final burn.
