I will have to look into, and play around with the new version. I guess I book marked the old one, and has always been my go to reference.
s+/s+ would be gold based male-- s+ for female
S/S silver based male -- S for female
S/s+ split silver and gold based male -- no female equivalent
The only difference that I could find between the partridge and the multiple laced was the pattern gene, pg+/pg+ for the partridge and PG/PG for the multiple laced. So, I don't think it matters which one you use as far as I can tell from a few hours of playing around.
So, a question about the silver base. If you had darks, you would have S/S correct? Gold partridge would be s+/s+ (as would the blue partridge)?