I thought SPG was a 50-50 mix of Beeswax and Vasaline? I could be wrong, you should be able to check it out on google. I've made lots of different lubes in the past, most work very well. The only thing I didn't like about the SPG was it was very soft and seemed to run everywhere, but it did work. One of the best lubes I've used was a mix of Beeswax and enough ATF (auto trans fluid) to make it quite firm. ATF has a lot of qualities needed for a lube and the wax makes it as hard or soft as you'd like. If you don't like the smell of ATF I've also used STP-Beeswax and that eliminates the odor problem. Matter of fact it only seems to have the honey smell of the Beeswax. It applies easily by hand and like I said, make it as soft-hard as you'd like. I use any small metal container (tin of beans if you'd like), melt the wax over a LOW heat (outdoors!!!!!!) then add the STP, let cool completely and adjust for hardness. One of our sponsors (DRAGON BULLET LUBE) is a great guy to deal with. I bought some Alox Liquid lube from him and he sent some free samples of other product he carries. Good prices, easy shipping, very nice to deal with AND he's a sponsor!!!! Best of luck.