My son drew antler less in Umtanum. We hunt the Manastash/Umtanum area. I'm more familiar, like you, with Manastash. We are going to spend a lot more time in there this year as he also got the multi-season tag. I do wish that I knew more of the West/South side of that unit. I do have some good topo maps and the GMU map too. Not sure I'm much help, is what I'm saying, but I'll help if I can. I do look to colleagues for guidance when I'm in need, but I hate to ask too.