I like Bulgarian Triumph as well but strongly also suggest Druzba
http://t.tatianastomatobase.com:88/wiki/Druzba
I find it to be more compact than others who commented on it at the link above, and routinely when growing in pots or grow bags would use just those 3 ring circular supports for it.
I never saw blemishes on it, nor splitting of any kind,in my experience.
Taste? Outstanding,again,IMO.
Carolyn