Yesterday I had a quick session with Robert Gardos (n. 24 in the world), and his setup is fairly normal : TB ALC + Dignics 05 (BH) and Dignics 09C (FH)
Matilda Ekholm, former Sweden n.1 and 20th in the world, used to coach me, and she uses T05 on both sides.
Timo & Co Dignics 09C etc.
As far as I know, none of them boost anything.
Only when it comes to Chinese players, information gets cryptical.