I think it has to do with the OTH selections. The green haze dubi uses does finish flower a few weeks sooner than the purple OTH. Purple is a higher yielded IMO and the effect isn’t as crystal clear as the green pheno.
I’m sure that’s the case. It seems pretty common that in many cannabis strains While the purple or more colorful phenos are beautiful... they don’t always have the quality of affect that the green phenos do. Not that this happens all the time but it seems to be quite common.
Regardless both of these look stellar, and with better yield too.