Oh yes, this LED is horrible in terms of tint and light quality in general. This is one of most greenish LEDs I’ve ever tested on my rig. Tbh, this light ‘quality’ is the main reason why I will not use this LED in any of my lamps…
I think I have some of these CULPM1 LEDs in stock. 
Maybe I can give them a try in the next weeks. From what I can see from datasheets, this seems to be a very good LED for throw, although the LED chip seems to be the same as of the older LE UW Q8WP I tested a few years earlier. The thermal resistance is also a little bit lower (better) so 1-2 Amps more maximum current should be possible. On the other side and in comparison to the old Q8WP, the Vf of the CULPM1 seems to be a lot higher for some reason…