My bells - one Yolo, one Bonnie Red Belle that followed my wife home from Lowe's - are doing OK, but make smallish fruit. The Bonnie's was 3-1/2" in diameter, but shorter than some. The Yolos are about 2-1/2" in diameter and a tad shorter.
Soil is some modified Kellogg's crap from Lowe's, I fertilize with oyster shell, bonemeal, Alaska fish sprayable, and Epsom salts. C. Annum hots do great in this mix, the bells OK (my Pimento Elites are huge producers in this soil, as are sweet cherries).
The bells taste GREAT, so I'm not complaining at all. Made some Mongolian (hah! it's Hong Kong all the way) Pepper Steak the other day that had the wife and kids licking the plates.
(that's sirloin tips soaked in Rice Wine for 20-30 min, then coated with Baking Powder until white and sticky. Sauteed in hot oil, turned once, drippings left in pan. Diced garlic, sliced peppers and spring/green onions in the pan - also from the garden - until limp, then the meat back on top with all juices. Cook it down for a few minutes, then 2 tbs of Oyster sauce (you can skip this if you hate MSG), 1 tbs of Soy sauce, I use Pearl River Bridge Light, and a dusting of flour. Turn after flour has a chance to expand, to coat everything evenly, then serve on white rice. A quick 15-minute dinner for a summer night family meal).