Correct me if I'm wrong but most of tiger mountains public land is park and thus not huntable. There is maybe 1% of the public being huntable and that was found doing some research and crossing the raging to get into it. When I'm talking tiger mtn, I'm talking the chunk of land north and west of 18, south of 90 and east of the issaquah hobart. Look on the king county parcel viewer. Anything owned by the county in that area is state park or natural area. A lot more public access on the taylor mtn side(south) of 18. Have to be careful not to go to far south because you'll either end up in the cedar river watershed or the taylor mtn natural area which is right off the 18 ramps in hobart. I grew up around this area and for as much land as should be huntable, there isn't much that actually is. Thank the county for all the natural areas that we can't even afford to maintain and yet restrict its uses.
Most of Tiger Mountain is owned by DNR, as is almost all of the land on the SR 18 corridor in that area. It is not a park, however it gets a lot of visitation which may lead you to believe it is a park.
I personally would not hunt Tiger itself because of the tons of people that walk/hike/bike it everyday. I personally like being by myself when I hunt and constantly running into people (non-hunters) is not my idea of a fun hunt.