Which brand of tomatoes are they and where did you get the seeds?
Heinz Variety Sauce tomatoes.
They’ve ALWAYS produced good tomatoes. They ripen within a very short time period, so you can do all your canning at once, and the fruit is always uniform and unblemished.
I got them at Territorial Seed Company.
http://www.territorialseed.com/category/sauce_paste_tomato_seed
The Heinz 2653.
http://www.territorialseed.com/product/Heinz_2653_Organic_Tomato_Seed
This is the sauce mill I use and LOVE IT!!!!!!