Anyone tried doing 4 stars under the effect of Detailing?

There's a set of Ixal dailies from Tazel which give you a buff that reduces CP by 100, but makes every recipe lvl 50, as I understand.

Has anyone tried to do a 4 star recipe while under this effect?
Would the loss of 100 CP justify the "extra" quality and progress gained from having the recipe always be 50 instead of 90?

Or does it not let you do 4 stars under that effect?

Even if it works I'd rather have 100 CP.

pretty sure it halves your CP...unless it's one of the really early ones.

This may be worth a try for the 3 HQ items with almost 9k quality.

I'll test this when I get some more Field III demis.