Tyson, when will you stop kidding yourself?
MG is an illness not to be played with...and all its medications take some time to have some effect. I'm on Pred, Cellcept, Mestinon since 2 and a half years and presently a weekly Plex.
Mestinon is not going to boost your muscular strength to the point it was before.
I used to swim every day (covered pool at home) and I had to stop for a year, I used to go skiing every year and that will be my third season that I skip...
Besides the medical problems associated with MG you could have while skiing, have you thought at the possible physical injuries like twisted knee, teared ligaments because you weren't able to correctly go down the slopes, even bone fractures because you couldn't control your speed and direction?
If, at least you were going with a good friend of yours or a relative who is aware of your condition, you could go and try the first day the easy slopes (in France the blue or green ones) to see how it goes and then decides how to continue but no, you're going with «healthy as a horse» friend and I'm sure there will be a constant competition from the start...
I know it's hard to accept but we all have had the same feelings and we all fight every day to have the best life possible, some succeed and some not quite...
Sorry to have been so blunt but I was just trying to put you in a more proper (at least from my point of view) perspective.
Maurice.