Tyson,
Don't be so impatient, I started Pred mid August 2007, constantly increasing to 75 mg/day (1 mg/kg of weight) and I only saw improvement in my muscular strength begining of January 2008 but sight problems disappeared after 3 or 4 of weeks...(I had generalized MG).
I had two series of IVIG without any effect and 5 PLEX in January, which effect was dubious as I think the improvement at that time was due to Pred.
I used to swim every day but it took me a year to be able to resume that activity.
I'm now in a relapse period and I have PLEX on a weekly basis and this time they work and keeping me afloat, waiting for the Pred(50 mg/d) to kick in.
One last word, Mestinon did not seem to work to work at the begining but Timespan did, as without it, swallowing the first Mestinon tablet of the day was horrible, constantly choking, it was taking me half an hour to go through...
I think you are expecting too much of Mestinon...
Take it easy and let time pass.
Maurice.