we're actually considering changing the color from WS2 to something else.
then I'm entirely out.
my delta R1 kit never yellowed to date.
I'm in the same boat when it comes to my R1 set - but we hope to find a suitable replacement which will still capture the essence of the set.
Part of what is taking so long to launch this set is finding that replacement.
We would prefer to swap away from WS2 though. While I've never personally been impacted by WS2 yellowing (GMK Delta, GMK Noel), I've seen too many photos of brand new GMK Bleached sets having yellowed alphas. I'd rather avoid that.
I don't know if batch variance is part of it, but I think when someone is paying as much as they are for a GMK set, we should do everything we can to limit yellowing.
Again - most white plastics will eventually yellow, but if we can increase how long it takes, I think that's an overall better product.