arrow flight problems

[Stone Knife]

3555's are 500 spine 1535's are going to be way too weak. JMHO

[Easykeeper]

You can get all the recommendations in the world and you still won't know what you need until you actually do some tuning.  The link JamesKerr gave you is the best way in my opinion.  This link takes you directly to the bare shaft tuning section...   ACSbows.com/bareshaft tuning

[bulldogto]

I did quite a bit of shooting this morning.  My bare shafts are consistently grouping to the left of my fletched shafts.  I tried increasing and decreasing the brace, but they still grouped left.  I also tried some 145 grain tips....same results.  I ordered a dozen of the 15/35 blem shafts from bigjim and will play with them.

[pitbull]

If you have an older model Grizzly, 1535's cut to 28" with a 175 gr. point should put you real close.

[JamesKerr]

Sorry about the misinformation about the 3555's. If they are a 500 spine they should be able to get you pretty close though.

[BigJim]

Sell the 3555's and shoot the 1535's. they will  be perfect. YOu should be around low 40'lbs at 27". That is right in the wheel house for 1535's.
Trust me, you will see when you try them.

BigJIm