re:arrow

So if I understand the information for 525 grains:

0 is point blank and I would aim 4" below to hit center to account for "rise"

20 yards is zero and aim directly at 0 to hit center

30 yards I would need to aim 10.49 inches above to hit center

Reading the information you have given me it looks like the best I can do in k/e is 525 grains but that limits my range.  I can't help but like what I see on the 307 grains arrows.  The biggest change is at 20 yards and I would only lose .8  ft/lbs from my current setup...and at 30  yards as well.

The biggest question I have is in layman's terms, how big a difference is .8 ft/lbs?  I was also wondering about my cables.  I have rubber coated steel.  Any advantage to going to a newer custom cable? Say from someone like energy wave?