I would go with clear glass on a Cougar or Half breed. Not to start an argument, but i am not so sure that white glass is all that terrifying to a deer. They may see it, but one day I had 18 deer from with in a few feet to 25 yards for over a half hour. My body silhouette was broken by a single Christmas tree sized cedar, sitting on my Nifty Seat, the white bow was fully exposed, the deer never bother to even look at me. I did begin a draw tempting myself to shoot one, but the deer near it moved around and I was afraid i would hit the second deer on the pass through. They still did not seem to care. However, the buck that i wanted was kept busy chasing a hot doe around out of range. Then a button buck got downwind of me, walked up to me sniffed my neck, snotted on me when he snorted, then ran through the group snorting and they all ran along with him. I think recklessly waving any colored bow around will get a deer's attention. Staring them in the eyes at ground level will get their attention. Stinking like an old Dutchman really gets their attention. Oh I just i changed my mind, a Cougar with clear glass and a bubinga riser or very dark myrtle. Ask for no knots.