Grafted tomato plants

I think, from my Googling, that the He-Man rootstock is designed for plantings that are severely waterlogged?

The detailed DOCs say that the Tomato must be planted so that the graft is above the soil - to prevent adventurous roots from the scion ... which precludes deep planting them (or the graft has to be higher up). Seems reasonable, and I presume that applies to all grafted Tomatoes, but its a bit annoying as I like to deep-plant to get more cropping height.

Moles Seeds site says:

"Tomato F1 Aegis (rootstock) An excellent commercial rootstock variety that adds vigour and disease resistance to the chosen scion variety. Resistant to ToMV, Fol (1&2), Vd, For, Ma, Mi, Mj, Pl, Rs."

"Tomato F1 Arnold (rootstock) Using a roostock can improve a variety's vigour and disease resistance. Excellent commercial roostock variety. Resistant to ToMV, Fol (1&2), Va, Vd, Cf (1-5), For, Ma, Mi, Mj, Pl, Si."

They also sell grafting clips (I imagine that tape would be a nightmare to remove from a grafted Tomato plant!

So the Rootstock is going to be 15 - 20p per seed, the Scion another 10p, the grafting is fiddly, they need a lot of mollycoddling after grafting ... not surprising they cost quite a lot!

Good point on disease - not had any problems with my Greenhouse Toms either.   Maybe I could graft one onto a French Marigold rootstock to get a Tomato plant that deterred Whitefly?

Well well, something else I've learned from this site.
I never realised you could graft Toms.   

I remember a gardening program quite a few years ago, showing a greenhouse with a broken window at one end, the Person in question was asking " why are some of my young plants looking well while the rest are going leggy?? The answer was,  you have got a broken window at one end and the breeze keeps them moving, the leggy ones are permanently still.  He advised installing a small low output fan at one end to just to keep them moving slightly for aprox 4 hours a day.

My local Wyevale garden centre is selling off tomato plants, including grafted plants, for 50p each. They have hundreds of them.