Hi, I've had MG for24 years. I had a lot of hand cramping and found I had to limit the amount of time I could write. I was so happy that computers came along as I had to do a lot of hand writing before computers and word programs came in very handy. I still found I had to limit typing at times due to finger cramps. I read where one guy actually learned to write with both hands because his job required a lot of hand writing/drafting. Your husband may need to do hand therapy to work the tendons and ligaments in his hands to get more stamina in his hands.