I personally shoot a high wrist recurve better then a longbow/recurve with a straight or low grip. If I shoot broken wrist, I'm all over the place.
But, if I spent a lot of time with a "hill" type LB, I'm sure I could shoot it OK. My problem is, I have to set time aside to shoot, as it is. Maybe when I have more time on my hands, I'll pick up a LB and learn to master that bow. I've learned that in order to do something well, reguardless of what it is, you have got to put in the time. Shooting instictivly takes time to gel (building form,release,fallow thru,ect). If your hinting that your overbowed, you probably are. If you shoot better with a curve over a LB, my advice is to go with the flow. If you approach any shot second guessing you can't pull it off, you have alrady talked yourself into missing. Drop down in weight, shoot as many bows as you can before you settle on one. It's pretty amazing when everything comes together and you pick up a bow that you just can't miss with. But for most of us, it takes a while and a boatload of pratice to get to the point where we can shoot a lot of different bows well. Then again, some of us just plain can't shoot different styles well.
Most of all, welcome to the site and enjoy the ride. There is a wealth of info here that folks give freely.
JL