Yeah, bring the old one back I think.
There is too much imprecision here, nothing really official, and a lot of strange approximations from eras lacking a lot of facts. But it's your thread, so this your list, your view on the best players ever, and the effort is to be appreciated.
This is too formulaic... The whole order is screwed up imho...
Care to propose an alternative?
Murray should be much higher. Also how do you get 1.73647364846458374577 slams or whatever?
Murray is exactly where he deserves to be. Besides, he is not even the highest ranked Murray
The fractional slams come from the pre open era. Some years had, for example, 9 slams, where each slam win would only count as 0.44 of a slam. It is all explained in the OP.