it doesn't matter what kind of gloves you use. you could use plate male gloves as long as you always use an ESD strap. as long as your body is at the same electrical potential as the circuit, then so is anything else on your body, such as gloves. and you obviously only need one wrist strap, not three. the gloves are touching your body and the wrist strap should be on your body. most circuit boards have chassis ground routed to a screw hole or something. that's where you should be grounded. if you can't get the alligator clip on there, just make sure you keep a finger on that bare metal as long as you're handling the board, or if you need both hands for something, keep touching it every few seconds to keep your body's potential the same as that of the board. simply moving causes static to build up. and of course handle circuit boards by the edge as much as possible. try not to touch any components or bare wire soldered to the board... even if you are wearing a wrist strap.