Fred,

Jeff may be able to help you out with this one to some extent as he is somewhat of a guru on arrow weights/spines, etc.. I am unsure what the spine rating is on that goldtip. Is it on the Goldtip website?

To give you something to compare it to though....my Beman ICS 340s (which should be the proper spine for your setup) are 8.9 grains per inch if memory serves me. They weigh about 20 grains more (finished weight) than the Carbon Express 400s I had been shooting prior but I believe they were of relatively equivalent spine.