Suddenly hooking the ball?

My game has been at both ends of the spectrum within the last year.  I have had slicing problems (coming out to in), and a couple of months ago I had a hook (coming too much in to out) that I fixed my making my grip weaker and changing my swing plane.  However, after taking a 7 week break from golf I was hitting it right with the weak grip, so I came back to my old grip (which is neutral to weak).     I just went to golf camp for a week for a great experience and because I need to get better for school (I am around a 20 handicap).  I was hitting bit of a fade usually and they told me to make my grip stronger and to keep my left arm close to my body.  Now I have come back and without even making my grip stronger I am hooking it (so I am definitely not going to make my grip stronger as that would make things worse in this situation).  I definitely don't start my swing with my hips usually, which is what I was trying to do today on the course instead of making my grip weaker like I did a couple months ago.  Many balls hooked, but there were a fair amount that went straight and had a nice draw when I started with my hips and lagged.  I was getting much better distance today too, better than usual.   Nevertheless, I need to fix this hook for good while maintaining this draw.  Any recommendations on what I should do?  Should I keep working on my lag or do something else?  If so with the lag, any good drills?  Thanks.

I'm not great, but I have dealt with everything you have multiple times. Where is the ball starting out initially? Straight and then hooking badly left? Or is it a pull hook?

It tends to be a little more of a pull hook than anything, sometimes straight but regardless it hooks

Read this man. Really helped me understand what was going on a lot better.

http://thesandtrap.com/b/playing_tips/ball_flight_laws

Sounds kinda like you have a good inside to out swing path but your face might be closed at impact and I haven't seen your swing but you may be too flat, might have too much weight on your heels or be squatting. Not really sure since I can't see what you are doing.

And I am no pro lol. Just throwing some ideas your way.

Thanks for the help, I am aware of a lot of this stuff, I am wondering how I can get my clubface more open at impact with this in to out swing path.

Open the face a little at address, try weakening your grip more, and/or maybe try moving the ball around in your stance.

That or it might just be plane. Try making it a little steeper without coming over the top. I struggle with the same thing man. I sometimes have a problem finding that perfect spot. I wish someone good would share some drills they know.