Hardened ebayer-do you honsetly think these will sell better at 3 day auction as thinking about 1 day auction ?

[fakeblonde]

Ok i`m selling a lot of tesco vouchers and they seem to go for almost double.
I really need the money asap.
Do you honestly think i wouls stand a chance of getting more for them on a 3 day auction as oppossed to a 1 ?
Cheers x