Most of the auto plants I grew, were "high CBD", which I attribute to the "larfy" nature of many of my Western Washington outdoor grown autos.
Potency has not been an issue. Sure individual plants were duds, but overall high frost and potency levels.
All the Auto Bubblicious, seemed to be denser buds with lots of frost. A unknown auto cheese was dense and potent. One of the two auto Kush Van Stitches I grew was super resinious, potent and a strong lemon scent. Big less than dense buds though. (Which is better for me in my humid marine climate.) Even a Mephisto sourhound was frosty and potent, but not that dense.
I look forward to popping more Mephisto seeds on my next grow.
I have yet to see autoflower buds as dense as photo Buds. Potency, and yield though have come a long ways since the first lowryder rudalis genetics.