I think the Chubby 2 Platinum synthetic is technically the better knot. I'm not sure how to explain it really but the way the knot acts when wet isnt like any other synthetic I've used (and I've used lots).
The problem with them however is they are set quite low as standard and have a LOT of backbone. This is fine if you bowl lather/paint your lather on but I found it virtually impossible to face lather with. If I was a bowl lather person I would definetly have kept my Simpson because they are clearly high quality, just comes down to your prefered technique.
Agree. Unsuitable for face lathering. Omega EVO and Simpsons Trafalgar, which I assume are G5, are much more versatile and have softer tips IMHO