NAHHH you just have to work the throttle. Our boats can and should rev higher than 50 yr old pushrod V8 designs. Don't be scared to put the whip to it, you can't break it. I was out yesterday with an absolutely overfilled (forgot and shredded the cover!) Skylon Locker Sack (1k) in the trunk, and 7 adults. The wake was awesome, lippier than usual. I like all the weight in the back, 90/10 It digs in if I have any weight in the front, and i get water over the bow. It porpoises a bit that way but I get someone to sit in front:)
REMEMBER weight in the trunk of an Epic is behind the boat. Our trunk is behind the transom. A sack is heavier in the trunk of our boats than any other! Danny Harf put three 550's in the trunk of his X22.
4 blade prop DEFINITELY makes things torquier out of the hole, I am thinking about a stainless one. I can feel my nibral OJ 4 blade cavitating and flexing under heavy loads. Stainless is the answer!
Our boats get out of the hole better than a stock 04 XStar. Big wake but what a dog!