Have you taken a look at the Articles by Mike Robertson and Eric Cressey, They have a bunch like Neanderthal No More,
I've done them and dropped them for me basically because they weren't that challenging and I'd prefer to do something like hanging leg raises instead.
Supine glute bridge is more of a activation and/or warmup exercise
Speaking of glute activation check this article out:
"And for crying out loud. Don't go into the pain cave. I can't stress this enough. Your Totem Animal won't be in there to help you. You'll be on your own. The Pain Cave is for cowards.
Pain is your companion, don't go hide from it."