Breaststroke Pullout Q's

I'm just learning these formally (I taught myself a few years ago) and consequently suck at the pullout. I always mess up the timing and I"m almost always too deep, especially from a dive. So two questions: 1) Any tips for reading depth? Breaking out to early, or feet brushing the surface are my biggest problems. 2) In a race, is it better to risk a pullout and possible DQ, or just do a streamline off the walls? I feel like I can go almost as far on a good streamline as a pullout, and streamline don't usually have messy outcomes. Thanks!!!!