This is purely speculation, so I could be completely wrong, but the original AP G5 fibres might have been made by BASF (AP says they're from Germany) and might be the same as the Mühle STF. But nice that other manufacturers are coming on board. I'll definitely be up for a G5C in January, I've been hanging out for a decent synth fan for a long time.
Having researched the subject in great details across the vast forums and having tested some newer Generation synthetics I am convinced the majority of the fibres are sourced from the same place - BASF (Germany):
AP SHave Co G5 variants
Muhle/EJ STF
Oumo G5
Lansky G5?
Older Generation fibres:
Yaqi/AP Shave fibres appear to be manufactured by Cormay, based in China...
http://www.cormaynm.com/en/a/Beauty_make...echnology/
Possibly Maggard knots are sourced from there also with claims their G5 is from China as opposed to Germany...?
Silversynth Fibre (Omega EVO) is manufactured by K R Filament Co. (Krex), based in Thailand...
Simpsons Soverign Fibre resemble the Omega Roma in appearance with only difference being how each set their knots or overall size...???
• Omega Roma Colosseum, Nylon, 31x55x105mm, 84g
• Alexander Simpson Trafalgar T3, Sovereign, 32x53x103mm, 86g
http://shavenook.com/showthread.php?tid=62371
The Yaqi BEAUX G4 knot in Atlantis Brush strongly resembles the Trafalgar & Roma with some knots being dyed brown to resemble the Omega EVO & Simpsons Premiun Fibre (Chubby 2/M7) adding to the confusion.
To confuse things even more Frank Shaving released their own G5 Anti-Bacterial knot last year that resembled a Boss knot but browner in colour with claims of pink dye loss upon initial use. The FS G4 knot was greyer in colour with comparisons made to the Oumo T4 knot.
The only real issue I have noticed is how each manufacturer sets their knots as reviews on the many wet shaving forums talk about such and such knot being the same but some feel distinct due to overall loft resulting in density, feel, splay, backbone with optimal loft for the G4+ knots being above 50mm otherwise the shorter fibres struggle to splay and feel scrubby on the face or as was my experience with a FS G4 knot the shorter loft meant the knot wouldn't release lather and since adjusting it it now works amazingly well but still no way as natural as any badger or boar.
I hope to compare a Oumo G5 knot against the competition next week as keen to see how well it stacks up against my badgers as reports indicate the feel and performance comes close with improvements in water dispensation and lather retention...
