I used to grow A11 from time to time, and I still rate it as one of my all-time favorites. I haven't been able to find it anywhere, although I haven't checked any auction sites, they seem a bit shady perhaps? So I'm wondering how A13 compares really? Will I be happy buying A13 as a substitute for A11, or am I better off looking in C99 and C99 crosses? And does anyone know where I can still find A11?? GG