Spud-growing competition - help needed

Hello

I've entered the lotty spud-growing competition.  It's a bit of fun to raise funds for the association, but it will soon turn nasty as all the ego, macho pride, and male competitiveness rear their heads 

We've paid our quid and got our four seed spuds.  I wanted to ask members for tips, tricks, underhandedness, deviousness and any other blackguardry that might help me win.  Top tip might get a share of the spuds.  The only rule is that we have to grow the spuds on our allotment, otherwise anything goes.

Cheers

Oscar

cheat.

Give each potato seed at least twice the normal spacing.

Somewhere I have read about producing record yield from a single potato. They bent over some of the tops and buried the stems. Where they were buried new roots formed effectively making new plants. This was repeated until there were many plants covering a big area. If you think about how potatoes grown in bags put out more roots up the stems as the bag is filled I can see how it would work.

Does anyone know about this?