Tomato pruning question?

[kath]

Originally Posted by cortona

here in tuscany(italy)we leave at max 2 principal stem but in very vigorous plants/variety i let the side branch produce the first cluster of flowers and after this i cut it an inch over the trusse. but usualy i do this for medium little size tomatoes for big ones i simply leave one stem and continue on this way all the season, we can have probably les fruit number but as usual if you have a gived quantity of water and nutrients the resultant fruit are bigger and better tasting.
that is my 20 c

Cortona,
What spacing do you use between plants and rows when pruning to one stem? For two stems?
Thanks for your tips!
kath