My OG was 1.057. Everything I've read says that you want to do diacetyl rest when you are about 70-75% finished with fermentation, as primary fermentation is finishing up. When I took my reading after day 7, I was down in that range so that is when I started the diacetyl rest. I have read that if you wait until it is already at FG then you have missed the optimal window for a diacetyl rest.
I didn't know whether most people did diacetyl rest for much longer than 4-5 days? I wasn't sure how long to leave it at 62 degrees. So if I let it warm back to the mid 60s will that wake up the yeast again?