The beating you are putting on your fork with Gator Bait, Indian and Techno pig is way more then what you get out of HartBreaker. So you can't use that excuse. Add it!
Your loop may be closer to 9/10 miles since you are repeating misery and sections of grampa. The north east portions of Hogwild are probably the worse in sand. Instead add SyncHole, palmetto and the west side of Hogwile (enchanted). The less you stay on Main the less sand you will see.
I would recommend you do a loop using GatorBait, Indian, Hartbreak then Flatwoods. You can bypass sections of Flatwoods, then take the Levi and paved road back. You can also bypass Eubanks and take 1800 streight to pave rd and then the Y. That will keep your loop within 12 miles. As you get faster and stamina up on that, you can start adding a few more trails specially Panther which to me is HartBreak x 2 as far as root beating your shoulders.
I been double dipping for a while. Usually stick to main on first loop clockwise, then do ALL trails counterclockwise with group. I end up with 30'ish starting at 4:30/445 and out by 8:15. Would like to start doing 40'ish now starting at 4pm if I don't have technical problems as I did yesterday at the start.