Grafting and flavour:- does it change it at all.

[michael johnson]

I have grafted lots of tomatoes in the past onto hires root stock, and often wondered if anyone else has an opinion on if or not the root stock changes in any way the final flavour of the tomato to worse rather than better.

Also do you think that any seed saved from the resulting grafted variety would also be changed geneticaly in any way from the original and not come true- I think it might well do so, but I would like to hear others opinions on this as well.