im shooting a Hill style bow 30 inch draw 65 pounds using 500 spine arrows cut to 31 inchs with 125 grian tip with a rubber insert along the whole shaft ive got them to 650 grians making it 10 gpp bare shafted them and there spot on.For hunting is a 125 broadhead on these arrows good to go or a heavier tip and less in the shaft

cheers

If they fly good and hit where your looking then by all means go with that setup. I'm pretty sure those arrows will pass thru a lot of game.

I would shoot them thill they were lost or broken, then, use point weight to get it up. With out going to extremes, 100g brass inserts will put you at the weight you are used to right now. Why not try 6 each as we just described? The next time you get a hog, or scrub jul, or wild camel, have a first hand look at what your set up is capable of doing.
 With as much arrow as you are using it won't matter much
Although, I shot 490g from my 75#'er, with a F/F string. I now use about 550g total on my 63#er. Good all around set-up. I draw 29.5" target style, 26" Hill style. Most animals don't wait for me to get to 29.5" ha ha.  

With a 65# trad bow shooting arrows tipped with a 125 grain broadhead and with an overall arrow weight of 650 grains (10 grains per pound); you can kill elk, bear, whitetail, mule deer and huge feral hogs.

If the arrows are flying like a dart with this setup, you're good to go and if it was me, I wouldn't change a thing.

125grn heads have been killing stuff out of lesser poundage bows for over 40years. If it's on the mark it will do the job!

Don't worry about your Foc or any thing like that with a setup as potent as yours. Fred Bear killed everything with a set up very similar to yours including cape buffalo.

If it shoots good then why change ?