Hey Regan,
One thing to consider is if your new grease is incompatible with the old Honda stuff. IIRC, the redline CV-2 is compatible, but you should check. I guess you could do it when on the car, but empty a few cans of brake cleaner in there. Also, make sure to get the length set correctly when banding the boots back up.
I know when I was going down the path of turning mine into a track rat, I looked into the grease the Porsche guys use. I forget what it is called, but the stuff is like 10 times more expensive than the Redline CV-2... and it wasn't compatible with anything else. I figured why buy the expensive grease if I were planning on going through axles every two years anyways?
My $0.02.
Dave