About body hair in regards to cross-dressing?

I'm female and I cross-dress as male. I decided to grow out my underarm hair to add to my masculinity, but I don't know if it's worth it because now I have trouble keeping my underarms from sweating all the time. Do you think it's very important for someone who is presenting as male to have hair under their arms? Would clean-shaven underarms make my presentation less convincing? I have very little hair on my arms and none on my chest, so I also wonder if the thick, dark hair under my arms looks out of place.