I would not personally recommend a Treeshark at that weight and especially draw length.  As others suggested, a Tigershark, Interceptor or Safari glue on coupled with the appropriate adapter would be a better choice IMO.

If adapters are not your thing Simmons offers the Interceptor as a 190 screw in and the Safari as a 205 grain screw in, either should work for you.

This year I set up a new bow that is lighter than I am used to, it is 47# at 28" and I chose Tigersharks for that rig.

I like the screw in glue on adapters too. It lets you shoot a smaller head and you can get just about any weight you want with the adapters. Perfect for lighter weight bows.I also like to have my heads mounted horizontal. This makes no difference in how they shoot. I just like the sight window with them mounted that way.

I also like the Tigersharks.