If you were shooting a 65-75# bow your arrows would be just fine. You are WAY OVER spined for your bow. Try some cedars spined for your bow poundage. My experience, particularily with longbows that are not center cut - that lighter spined arrows work better. For example: if your bow is 50# - arrows spined at 45# are better than those spined at 50#. Of course, you can find light spined aluminums-- but they don't smell as good as cedars when you break 'em--which isn't often, as they are alot tougher than alums ---Carbons are the toughests. Personally, I only shoot woodies-In my 40yrs of shooting, my experience is that they perform up to about 98% as well as the artifical ones.