Thanks for sharing the article. It's pretty fascinating (and somewhat of a relief) to read that top touring pros need to experiment around with lead too. Sometimes I read posts and threads about adding lead that treat it like it's an exact science and should be done more or less that same way for everyone.
It's nice to read that it's an art as well as a science, and that players really ought to experiment with different setups to see what works for them.
3 x Head MGPMs: Pacific Classic Gut 1.25 x MSV Co-Focus 1.18
3 x Head i.PMs: OGSM 1.22 x CoF 1.18, Energetic 1.20 x CoF & PPA 1.25 x CoF