Last year I tried Martino's Roma for the first time. This is an heirloom paste tomato and it did really well! The fruit on Martino's Roma had zero blossom end rot and the yield was very high. The other 3 varieties of paste tomato I grew last year (San Marzano, Amish Paste, and Polish Linguisa) suffered pretty badly from blossom end rot and the yields just couldn't compare. I may very well forget about the other varieties and grow solely Martino's Roma next year.
That said, I get nervous when I rely on a single variety to produce all my tomatoes of a certain kind (cherry, beefsteak, paste, etc.). Maybe I should try out a hybrid paste variety in 2011 and compare the flavor, yield, and disease resistance among the heirlooms and hybrids.
Any hybrid paste tomato suggestions for my 2011 seed order?