Ok, let's have a conversation...all the information below is just that, information. Always inform yourself before doing something stupid.
If you want to experiment I can tell you that WSF loads similarly to Herco (and to some extent Unique). That should translate to 6.5gr for a mid(ish) range load and 7.5gr for something a little more caliente under a 158gr cast bullet. Work your way up from there if you still have hands, lol.
P.S. I hope this doesn't shy you away from giving it a go. One of my favourite 9mm loads (3.7gr of WST under a 147gr CamPro) was an experiment very similar to the one mentioned above (no published data, very little on the net and countless warnings of my impending demise).