Hey there Dennis, never to late but I have since sold my GX7 clubs , with the money I won I actually went and brought a M4 Taylormade Driver.
I used the same technique as I had been and slowed my swing down and set up for a bit of a draw , and it had been going ok and going further than i was hitting the GX7
So I now think it doesn't really matter , a shit swing is always going to be a shit swing and no club will fix that! hahahahaha I still fade a few but thats when i know I am swinging to hard.
Im not saying it didn't help because it really seemed like it did at the start there. Im happy with using the driver now some days are better then others but as they say that's Golf!
So up to you really but maybe take a demo driver out and slow down and see how that goes.
cheers