Shouldn't be a problem at that level. Mechanicals typically get in trouble under 50-60ft.lbs. hence the creation of the 40ke rages. Your bow, in general should be in the 84ft.lb. ballpark, as you noted with your two arrows. Fun math, bows are typically somewhere in the 45-55% ballpark of ideal case: 29" / 12"per foot x 65lb draw x 53% = ~84ft.lbs. If you change your draw weight or length, you can use that offset to approximate what you should expect on your arrow, and track where your bow gets more or less efficient.

And again, the heavier the arrow, the better the deployment, regardless of what bow it comes out of.