What is the thoughts of you all. I'll load photos if I can figure it out.

"Woo Hoo"?? I don't know what this is.

It's a redemption 3 card set from Tempo 1996 for The Simpsons. Never has been one that missed the hole punch part of the process. I believe that means a "Master set" can't be a thing without this set.

So this is one of those "in the weeds" subjects that can go either way, depending on your viewpoint. I also had no idea what cards you were referring to as I didn't pay much attention to the Simpsons' products. I don't know the rarity or value of these cards and have not tried to look them up.

My general comment would be that I'm not sure I would call 3 cards a set, especially if they came as a package offer. It's more like bonus cards or an extension to a set. But I have been told before that there can be a 1 card set, if there is only 1 card. I don't accept the premise, but I wouldn't argue about it.

If you think that the 3 cards and an unpunched redemption card make up a "master set" here, then that is your idea of the complete set.

However, accepting your definition that 4 cards is the complete set for "Woo Hoo", to have a "master set" you would still need a 5th card. Already having the very rare unpunched redemption card, you would under the old rules technically need a punched redemption card to have everything and be able to call it a master.

In the early days eg 85 Australian card producers made for sets a redemption randomally packed when redeemed you got your card, a certificate of authenticy.and the punched redemption card returned to you .
I have always considered this a set of three cards .I have a couple somewere A AFL or NFL one and I think a Rug Rats one I will try and find them and possibly give more info on them.
Normally there is as with most redemption cards a players or stars name wich you can redeem the card for
Later or now days Topps cards had a code number wich you digitally downloaded for the card to be sent to you.
I am sure that now they are a thing of the past as most cards are now packed out could be wrong .
High prices are now being asked for earlier especially Inkworks redemption cards I have advertised on the forum for them but no offers.
I actually got the Inkworks Veronica Mars 2 Tessa Thompson as Jackie Cook redemption card for $5 US last month I think that this card is very Rare as it is for a variant card so did not think twice and jumped on it surprisingly there was no other bidder .But shipping ruined the cheap price.

I knew what he was talking about but only because Chesspiece has mentioned it before and because I've looked over the checklist for the Simpsons Down Under to see what he was talking about.