Do discs have to be stamped "PDGA APPROVED" ?

I bought a couple new Discraft Soft Magnets today and noticed the stamps has changed. One thing I noticed was PDGA APPROVAL not on the disc. I looked in my bag and all my other discs have that approval stamp. Should it be there?

[Chuck Kennedy]

Optional to use the PDGA Approved stamp.

[Curtis Minton]

Thanks Chuck

[Roy]

Yeah, it doesn't matter if it says it on the disc or not. What matters is that it's on PDGA approved list (which it is, all Discraft discs are).

The only time I've personally heard of the PDGA approving a disc and then taking it off was the Turbo Putt, because it has a spiral coming out of the bottom of the disc. I don't know if it was because it gave a unfair advantage or what, just know that they had approved until Dec. 2008.

I actually have the PDGA approved list, it's interesting, tells lots about the discs as well... ...like height of disc, depth of rim, width of rim, how wide the disc is, the date the PDGA approved the disc. I wondered the same thing last summer and how I found the list. I want to say I got it of the PDGA website, could be wrong though.

[Chuck Kennedy]

When the flexibility standards were established in the early 90s, the Dimple disc was dropped from the Approved list (and maybe some others) for being too rigid. The Approved Disc and Target lists are maintained and updated here: www.pdga.com/tech-standards

[Roy]

Never heard of the Dimple, who made it?

Interesting, didn't know discs could to hard to be approved.

Chuck Kennedy said:

When the flexibility standards were established in the early 90s, the Dimple disc was dropped from the Approved list (and maybe some others) for being too rigid. The Approved Disc and Target lists are maintained and updated here: www.pdga.com/tech-standards

[Chuck Kennedy]

Flexibility spec is essentially a safety factor even though that term isn't used. Don't remember the manufacturer. The disc had a dimpled surface everywhere like a golf ball making it very inflexible.

[Jon Andrews]

What a sweet website, thanks.

Chuck Kennedy said:

When the flexibility standards were established in the early 90s, the Dimple disc was dropped from the Approved list (and maybe some others) for being too rigid. The Approved Disc and Target lists are maintained and updated here: www.pdga.com/tech-standards

[Nascar Dave]

Chuck Kennedy said:

Flexibility spec is essentially a safety factor even though that term isn't used. Don't remember the manufacturer. The disc had a dimpled surface everywhere like a golf ball making it very inflexible.

The Dimple was stamped with a Pychotic looking Bart Simpson and said Grateful Dude underneath of it. It looks like it was manufactured by Dynamic Disc, 91310, also list it as patent pending.

[Nascar Dave]

[biscgolf]

on the opposite end of the spectrum it appears gateway has been selling their voodoo putter marked pdga approved when in fact it is not.

[Tino "SilverBack" Medina]

stamped no, to play with no, to play in a pdga tourny....hell yes or at least be on the list of approved discs.

[Donny Olow]

Thats It !!!! http://www.pdga.com/tech-standards