Actually he isn't comparing to any triple XM-L neither, hence my general answer. The light in the second post is a triple P4. I think you mistook it for the Trustfire TR-3T6.
In fact as a general note, the Trustfire TR-J12 5 x XM-L would be equal in throw to these multi Q5s as well.
SIZE MATTERS! Since I generally purchase lights for the bike, I'm only interested in single battery, smaller lights. It took me a while to get used to the larger size of the KD C8 when I replaced my MTE SF-15. Unfortunately, run times are going to be pretty short for 1x18650 3x<any led> light.