In my own experience, and other hangers I've spoke with about it over the years - Both Trail Runner and wbJohn are "spot on" with their suggestions.

Yes, you can pull the (your) structural ridge line - or - hammock, to tight. I prefer my foot end 12-ish to 18-ish inches higher than my head end. Never once thought of it as "extreme" either, LOL. It does work amazingly well for me though.

Give Trail Runner's and wbJohn's excellent suggestions a try, and see if they work for you.
Perhaps worth mentioning, if you were nice and comfortable in the ENO, maybe going back to that is the way to go. I slept in one (an ENO) for a while and found it more than comfortable enough...

Of course, your mileage may vary - as they say.

What section are you doing? And I hope your shin splints heal quickly, and don't come back, compression sleeves/socks can help.

Happy Trails!

willin'