I've done and seen dehydration from a lot of different angles. Used leg
bags, zip locs, gel pacs, bottles, catheters, and nothing. I've dumped
a bag out of window and ate it. I've bombed Camp David with a pee bomb
('ol Ronnie wasn't there). I've landed with wet pants.

Conclusions - You can manage hydration, but at some risk. And I don't
know how you figure out the limits of that risk without risk. I've seen
the results so I don't. I just stay as hydrated as is normal and that
normally produces normal performance.

We always have the red Sporty's bottle which works great for me. I have
run out of room. Never tried the Lady J on it.
We keep 3-5 gel pacs for both of us. We use them freely. Main
deterrent here is modesty. We don't have that issue, suggest you get
over it and let it flow.

If you think you have good control and capacity now, just remember it
will fail, slowly, over time. If you don't know that, I hope you live
long enough to.

And remember not to key the mike when you ask your copilot to pass the bag.

TF wrote:
I've mastered fuel management now the hardest part. How to manage mine and
my wife's bathroom breaks. Our trips are typically 3 to 3.5 hours but our
blatters don't always make it thus forci6ng a stop. Thats a big 30 min
addition to the trip. On my last filight I filed two flight plans and then
called ATC to open the next flight plan when we felt we could make it all
the way without the stop. Seemed to work.

Any suggestions on preflight preparations that have worked for others ? No
coffee before the flight ? No liquids xxx hours before leaving etc. etc.
Sort of like preparing for an operations.

Thanks.
Holding it in