Saw you post this elsewhere as well, so I guess I'll reply. Here is how I would run it while using aldactone as the "base" diuretic. I usually run aldactone at 50mg twice a day starting on the tuesday before show.
tues - 50mg aldactone 2x's a day
wed - 50mg aldactone 2x's a day
thur - 50mg aldactone 2x's a day
fri - 50mg aldactone 2x's a day
diazide approximately 5pm @ 1 tab (50/25)
sat am - 50mg aldactone and diazide @ 1 tab (50/25) approximately 3 hours before hitting the stage for prejudging.
sat late afternoon - 50mg aldactone and diazide if needed @ 1 tab (50/25) approximately 3 hours before hitting stage for evening show.
Now, of course I would still play this instinctively. If I am on, I may hold back on the diuretic dosage and/or adjust it as needed. Actually, now that I think back about it, you may not even need that much diazide. What I did last year was 1 diazide Friday night then only 1/2 on Saturday morning and I think another half later and that worked reasonably (I was afraid of looking flat). Good luck with a test run.
Oh, and you can drink the winny
DrG