Years ago, got an assortment of seeds from Laaz(old forum), whatever came up is used for a variety of citrus, mandarins, grapefruit, pomelo, lemon. They all seem happy. Thong Dee pomelo,Joe Real with minny growth. This is what I got, Varigated sour orange, Miyagawa, Juanita and F/D. Most turn into decent looking trees as rootstock.