Clearly I don't intend on pushing my arrow speed over the IBO. But, right now I only have a tubeless peep and a d-loop on my string, maxed out poundage (supposed to be 70, possibly a pound or two heavier haven't checked.) I'm shooting a 353 grain arrow (they use 350 to determine IBO, my sig says 363, it's wrong I need to change that.) And my draw length is 30".

So what I was saying, hypothetically speaking, could you get your arrow speed above IBO (just by changing strings and keeping everything else constant.) 30", 350 grains, 70 pounds, bare string minus the one brass nock they use to hold the arrow, no peep, etc. etc. Could a change in strings change the arrow speed higher possibly?