I don't know where you are getting your seed, but I have never seen small poblanos.

These are in the mercado

The average grower can not compete with those growers that supply to stores or grow the huge fruit. Those bell peppers you see that are a foot long are usually hydroponically grown in Green Houses with specific nutrients and special techneques known only to the growers. What we grow is probally right for what knowledge we have. Climate, soil, heat, nutrients, sun, all play an important role in development and in a controlled environment such as a large Green house creates a better product than a plant sitting in the soil in the backyard fed with Miracle grow and hit with the extremes of the environment.

I have used several seed sources i.e. Ferry Morris, Bonnie, Bakers Creek, saved seed etc. even some store bought plants. Yeah it is the market size of poblanos I would like to grow. But I can not seem to find the right variety or maybe it is as ronny123 says and just to much trouble to reproduce those results.

I have also grown Poblano few times but never got pods nearly as big as those in the market. Same goes with bell peppers. That is why I won't grow them anymore. Plus my Poblanos were not productive.

Seysonn

I have grown at least seven varieties of poblanos, including the one my farmers market guy grows sixty miles away ....he GREW Tiburon, not IN Tiburon...which is also sixty miles away .

Never as big as the market ones, and always at their best as the weather gets cooler. Here that is around Thanksgving, and I end up pulling by Christmas. Oh well; easy to buy the big ones around here (N. Cal)

In an older thread I wrote

"Don't get me wrong! I've been okay with my pepper seeds from TGS. Some of the peppers are beautiful, all are tasty, a few, or parts of a few are hot. It's just that I haven't labled well, at least the harvested peppers, and they have been inconsistant. Here are pictures of this years crop, including Ancho Ranchero, Villa, 101 and San Martin.".

Here is the link to that thread, with the same question as yours, but my pictures are gone.

http://forums.gardenweb.com/discussions/2131472/anchos-not?n=33