I've done multiple non scientific studies regarding the latex gloves. I've always wondered if sweat could get through the glove or heck, any type of substance that could get on the glove and contaminate the glove and then transfer the ridges on the product. First off, if one glove is put on and I put tape over my fingers, no discernable print is found. all thats there is smudged sticky material. Even after using it for 1/2 an hour, I got the same results. But according to the above study, they subjects where ok using one pair of latex gloves for 2 hours. it seemed after the 2 hour mark of working/sweating, etc is what compromises the glove. So, it sounds like the best way to go is to either use those big ass kitchen gloves or double glove latex or use cotton gloves then the latex on top of the cotton. I think the last one is probably the best way to go, just because using those thick gloves is hard to work with small items. using the double latex is kind of difficult but the cotton glove/latex glove gives good protection and its not so hard to open something, easier to work with... Great thread. I know I learned something.