How do u measure yourself for your arrow length? I was told to draw my bow back and have someone measure from the string to 3/4 of a in pass the rest? Is this correct?

I am planning on running CX300 selects with 100 grain slicktricks on a 70 lb bow does this sound like a good setup?

That'll work. It will give you the arrow length that will give plenty of clearance past the rest on that particular bow with that particular rest. Change to a different setup and your arrow length might change.

thanks

How about the arrows are these good?