Choosing potatoes for next year: blight

We seem to get blight every year on our allotment and I am starting to look towards ordering for next year's crops. I am thinking:

First Early: Orla or Pentland Javelin
Second Early: Kestrel
Early Maincrop: Orla

Is Orla for first early and early maincrop the same seed potato but left in the ground longer before harvesting or are there different strains? Anyone know?

Has anyone tried any of the Sarpo range of potatoes; suposed to be the top of range against blight at present - but what do they taste like?

Thanks Solway cropper. I think you are right. My kestrel tops were blighted, but not before the potatoes had reached a good size, so I will use this one as a storer next year.

I read on the 'net that someone had grown the Sárpo Mira, blight resistant, in a litter layer of homegrown compost and leafmould as a First Early and then eventually a maincrop by furtling for potatoes and leaving the plant to keep growing. The Sarpo had remained unaffected while other variaties had been blighted.  I haven't tried them myself or eaten one to know if they are any good.

Pentland Javelin and Kestrel are my favourites.

You will find some people's thoughts on sarpo potatoes in the potato polls we ran in 2010, here:

http://chat.allotment-garden.org/index.php?board=51.0