Do you ever try the lotions that are supposed to keep your hands from sweating? I don't have this issue, but those lotions worked well when I was playing a sport that needed dry hands
Edit: this worked kind of, I imagine it would work better in a non sporting environment.
https://www.amazon.com/dp/B0015R4AUS/ref=cm_sw_r_cp_apa_i_.m6HFb9X100DY
For sweaty hands, I use Titegrip II. I only use a pea sized amount of the product and my hands DO NOT sweat. Last indoor match I was drenched with sweat on my shorts and shirt and not a single drop in my usually sweaty palms. A lot of people apply Titegrip first and then put on ProGrip. Personally I hate the white shit getting on my gun so I only use Titegrip and am thrilled with the product.
I’m a sweaty one myself so know the struggle. Did a lot of aerial yoga myself because I could grip the silks.
I still sweat a lot but have found that the Tite Grip 2 helps if I put on a ton of it like 30 min before class and then reapply. The deodorant kind, not the tacky kind.
For quick things where I just need an instant dry, I’ve found that Lupit helps. It’s just chalk but it absorbs the moisture instantly so I can go on poling. I might use it 5x during a class honestly.
Tite Grip II All-Sport Topical Antiperspirant Hand Lotion/Non-Slip Grip Enhancement https://www.amazon.com/dp/B0015R4AUS/ref=cm_sw_r_cp_api_glt_i_MAMW8HMV5VWJZMAGHDQE
Dry Hands Pole Dance Grip by Lupit Pole - Sweaty Hands Grip Aid – 2 Side Grip, for Dry Dancing Pole and Dry Hands – Hydrophobic Nano Substance https://www.amazon.com/dp/B01JOZE1Z6/ref=cm_sw_r_cp_api_glt_i_5H96DKYM699AXZX8AXHA
I've seen articles recently about this stuff; a lot of people's hands stay too moist so they never toughen up. I haven't tried it because my hands don't sweat normally, so I can't vouch, but the testimonials are positive. Good luck!