On the titrating up, I'd say give it even more than a couple of weeks on a stall. I've been on 8mg of reta for a while now and sometimes I'll spend a 2-3 weeks with the scale fluctuating a few pounds back and forth and never seeming to really go anywhere, and then the next week it'll drop 5lb. Retaining additional water weight while losing fat is something that happens, and even more commonly in women.
You might also be putting on muscle if you've got good protein intake and are doing resistance training, particularly if you're a novice (or fully detrained former) lifter and your body has a lot of excess fat to burn for energy (mine certainly does!). After the noob gains, though, the bigger the deficit, the worse your protein intake, and the lower the bf% you're at, the more likely you are to see some muscle loss as well. Being in the upper portion of the reference range on testosterone seems to help a lot for both men and women in preserving/gaining muscle as well.
The scale is never gonna be telling you more than a portion of the story, and I think all of us want to stay at the lowest effective dose for as long as we can.
