All Candy is Sour in New Game + 4

[jt_mac90]

I'm in New Game + 4, and I don't feel up for running the Javamatic again to Re-mix the Yard; I expect a new mix of Candy from a Re-mix, but worry I'll end up with all Mint, or all Spicy.

I had found some buried boxes with Mint pieces, I think I am still yet to get any Spicy in them yet. All of the buried full sized pieces have been Sour, I have the Wormhole, Cactus and I currently can't recall what the 3rd is. If the buried full sized pieces were Mint and Spicy, I could make due.... but every Candy box and every buried full sized Candy is Sour.

Since I am not up for going into New Game + 5, I am limited to relying on the Duper & buried boxes, is there any way to get Mint and Spicy?