You'll probably like those shorts... just be sure to wear under armor (spandex sports underwear) so you don't get a rash from the leg straps.

They will feel weird at first because the hook will be lower and connected to your waist... so it feels like it's pulling lower. Once you get used to it it's a lot more comfortable to edge especially when you get overpowered and have to wrestle the kite.

Your back won't ache either after a full day of riding.