My short opinion: There is a very slight advantage, especially if you grow heirloomy-type cherry toms. I don't find the advantage enough to justify grafting though.
I find that cherry tomatoes are vigorous enough with out grafting.
Definitely not. Already grow through the greenhouse roof.
We have done it for the last four years....definately , higher production!!!
Judy Murphy SPLENDID OAK FARM LLC Raising organic vegetables, berries and pastured chickens 49 Haggett Road Montpelier, VT 05602 802-223-2577 On the web at: www.splendidoakfarm.com Proud sponsor of the Central Vermont Mission at centralvermontmission.org