looking at genetics
The longer I grow peppers, the more I see how genetics are very important. When I am breeding my cycads, genetic purity is very important. Even when you are strict in your choice of parent plants, when you grow out just a single cone's worth of seeds, the resultant seedlings have an incredible genetic diversity that is obviously just by looking at them.
If you take the seeds from just one pepper and plant them out, you will see all kinds of different looking plants and they will produce different pod shapes. If you care about things like this, you normally will find the best looking plant that grows well and choose the one that has the best looking pods, or maybe the hottest pod, and breed that plant for next year's seeds. Sometimes you might want to do the same thing for multiple generations to make what you think is the perfect combination. I know this is what I have done with the reaper plants. The generic diversity of the original offers of reaper seeds, for many people, was unbelievably off the wall. Just by picking my plants with the best pods and breeding those together, I'm already getting very consistent pod shapes and heat levels.
But, after buying plants from multiple people, I find that the same type of pepper bought from different people can be very different. The first time I bought some peach bhut plants, the pod had a soapy after taste. If that was the only type I ever tried, I would stop growing those. Then, I got some seeds from a different person, and those plants produced luscious pods. I guess the bottom line on this is, most of us buy seeds or plants and just assume that what they get is what the peppers are supposed to be like. If there is a particular pepper you think you will like, I would suggest buying materials from at least three different people, especially if you want to do it for business. If anyone gets peppers that aren't quite perfect, don't give up on that type, check out what someone else might have in the same type. You never know what other people's genetics might be like. I know I have seen a big variety in Fataliis. Anyway, just a few thoughts on genetics. For me, the genetics I have for each type is a work in progress. I try to take the best of what I have and make it better, or more consistent each year.