I’ve got a 24 fury worked from Ronnie and another just b&b’d from propeller dynamics. They are within 1 mile an hour difference between the two. They are on the limiter at 6200 anywhere between 77 and 78 miles an hour two 180lb men in full tournament load. The one from Ronnie has got a little more cup for bow lift. That said I’d agree you have to much prop in a 24p worked with cup with a 250. Hence only getting 5800. The caymus I’d agree is less efficient so it’s getting more prop slip, that’s why your buddy is able to turn it up to the RPM that he is all the while, not going faster. A worked 23 I’d agree should be the sweet spot and get you 1-2 more mph. Winter time your worked 24 should be good to go.