I've been thinking about "joining the club" and saying no more cool whites...
My last purchases were a Quark 123 Tac /S2, mainly because I wanted one in that battery type to cover all the bases. The other purchase was shortly after Thrunite released their XM-L p60 drop in, and I got one of those because, duh, never had an XM-L before.
The tint on the XM-L drop in is a bit yellowish, but fairly nice.
The Quark S2 was greeenish yellow. Again. I just haven't had much luck with tints on the XPG 4Sevens lights. I've got four of them with XPGs:
Preon 1
Quark AA Tac (really green!)
Quark Mini AA (really green!)
Quark 123 Tac (greenish yellow)
The Preon 1 has a nice kind of snow white tint that I like. All the others are pretty bad. Normally don't care about tint but come on! These were too green even for me. I won't send them back though. I was thinking about picking up one of the Turbo AA S2s, but given that I've only had a 25% success rate with good tints from these lights, I just can't pull the trigger.
Waiting on more neutral and/or high cri lights from 4Sevens before buying again!
I managed to get what I think might have been the very last R4 Neutral Quark head in their inventory, beause after I placed my order, it went out of stock shorly thereafter.
The XPG Neutral R4 is awesome! It seems brighter than the R5 cool white, probably just because the color is sooo much better.