Replying to Foot issues w/ Dalbello Voodoo

Hey everyone, I bought a pair of Voodoo's in a 26.5 about half way through last season.  They boots are the perfect length and width but they seem to cut off circulation to my foot.  I say that because my foot tends to go numb in the boot.

I used to have a pair full tilts and I loved the intuition liners.  Would it be worth it for me to spend $70 on a new pair of heat moldable intuition or to just get a new boot?  I really don't have the money to go to a bootfitter and buy new boots.