That's a big investment in gloves there @CalverKeeper you must really like them. Anything specific that impresses you?
I am a similarly sweaty betty and might have to give your hydration tips a go. Is the sweat not an issue with wearing the under the trouser pads?
The GN gloves are really light and flexible but also give great impact protection. I had the legends previously our fast bowler made my hands sting, not had that with these gloves at all.
I think with hydration you have to play around, everyone is different, they will sweat more or less and have different levels of salts etc in their bodies. I don't have much caffein during the week so a boost on a Saturday helps me switch on and off, or at least I think it does so it works in one way or another.
The pads under the trousers don't bother me much. I wear a jock strap, full length base layer trousers and then the pads under my whites. I find pads will trap sweat in if they are on top or beneath your trousers but wearing the base layer means the sweat doesn't bother me. I don't have very sweaty legs anyway, more my head/face and upper body. I wear a sleeveless base layer on top too which helps get the sweat away. I know you might be thinking if I didn't wear the extra layers I wouldn't sweat as much but it really doesn't make a difference, I don't feel hot wearing the extra layer. I'm going with the theory that if your sweat evaporates quicker you will cool quicker.