I have camped low, high, and just about everywhere in between(a bunch of those places in region H)....
-Don't camp somewhere that will ridgeline you on a regular basis. If you camp on top figure out your best ways to and from your glassing spots. One place we camped this year was right off of the trail in a pass. Within a mile each direction we had more places to glass than we could really get done in 4 days. We camped close to a well used trail which deer were used to seeing people on. Our camp was hidden fairly well from people, but the deer know when you are there. The ridge had plenty of trees, and we were able to get well behind it for hiking purposes to overlook the basins.
-If you plan your meals, and know the exact amount of water that will be necessary for cooking you can leave a container for that in camp. So I will pump at the last available water source for my "camp" water. Then I will top off the 4 liter bladder for my day use, most of the time, if I am conservative this can get me through for a while. In other words, pack in an extra bladder, or one of the bigger dromdary bags.
-When you take trips down to water, get plenty to drink at that spot. Another trick on the same lines is to cook up a mountain house/dehydrated meal while you are there. You save time, and a little energy with less water you have to hike back up to your camp.
- Get your camp hidden well. David covers that in his book.
-If you camp on top, make sure that you use the same exit and entry routes to your glassing points. I try to do this even during scouting trips, because deer will live in the same areas its better to not disturb the deer you plan to hunt. The problem with getting high is that you will bump deer on the way in, but if you glass from the same spots the number of deer that are bumped will be a little more limited. Along the same lines, plan your routes to the next glassing spot, wandering aimlessly in the high country gets you spotted.
These are my strategies, don't know if everybody agrees, uses the same thing but thats what I do.