OK arrow gurus tell me what you think.

[Gooserbat]

First it's to close to season to try right now but this winter ...

A little bit of facts first.  I have a long draw of 30-30-1/4" and I shot a PSA 56@30.  I've been trying to get an arrow thats over 25% foc and 600-650 grain.  

This is my idea,  Gold tip series 22 (7.3 gpi and .300 id) foot around 8-12" with a standard .246 id carbon arrow (there is a wide selection with an  of shafts with an id of .295-.298 and weigh 8.2-9.8 gpi) and then use around 250 to 300 gr. heads.  Every thing I run on the calculators comes out at 25% or more on the foc and 630+ grains.

Do you fellas think I would work.