Is your bow quite now? When you crank it up, you are bound to get a little more noise.

Just to give you some rough numbers...I was tinkering around with my bow the other day and found a few things out. My current set up is 72# PSE Vengeance NRG Hybrid, 538 gr XX75 2315s, and about a 29" DL.With this set-up I get 238-240 fps. I went and drop the poundage down to 67# and my bow shot about 230 fps. Again I dropped it down to 62# and the arrows flew out at 220 fps. My point is, if you crank your bow up 5# you are only going to gain about 10 fps. Now each bow is different, but will 10 fps really make that big of adifference? Will it be worth it when you have to readjust your sights?

There will be nothing wrong with you cranking it up; and there is nothing wrong with that option, everything will be fine once you get it set-up. There is nothing with your bow as it is now, it will kill a deer without a problem.

I'm not going to tell you my opinion, I'm just trying to give you some idea of what you can expect and some questions to ponder. Do what ever will give you more confidence when you step into the woods, thats the best option.