Hi Bill, Any wedge produced before the 2010 "groove" rule went into effect is illegal to play in an event governed by USGA rules. The "red" spin milled color was produced prior to 2010 so they are illegal for play.
But, on the other hand, it might be time for new wedges as they are at least 7 years old :)

thank you cathi, I am looking for the new wedges in 2018 but they don't make a 64 degree in left handed

Bill, have to agree with Cathi, after 7 years you probably don't have enough grooves left to spin the ball so why get caught illegal in competition when you can get a nice set of SM6's with brand new grooves that will give you stopping power? Tell Santa what you want. Merry Christmas!

thanks folks cally still makes 64 degree I'm looking at them also as well as clev. and titleist I personally love the 64 degree I carry 5 wedges usually when I play, I will contact vokey but I will try all wedges out together to see if the others at 62 are just as compatable as my 64 thanks to everyone all have a happy thanksgiving and merry christmas

damn dude, 5 wedges? really? what else do you have in your bag besides your flat stick?

Think it's time to buy some new ones lol

Guess you could try and go 54, 58, 62 or have the 62 bent to 64. Problem there is you will add 2 degrees of bounce. Maybe contact Vokey custom shop to make you a 64.

2024 is the first possible date that amateur golfers will need to have the new grooves to post scores for handicap purposes, unless you are a competitive player planning to play in U.S. Open and U.S. Amateur qualifiers.
for more detail check the PGA website link below
http://www.pga.com/node/77953

I thought that the groove rule was effective in the mid 90's when Karsten sued the PGA and i think the usge as well. Im not sure why they even messed with the grooves. They say that the square grooves give you more spin from the rough but Mark Calcavecia demonstrated that isnt so. he hit 2 shots using both grooves and ended up with the almost exact same result, his 2 balls were just a few feet apart.

Titleist pro's didn't have enough interest in a 64 wedge. You may want to contact the Vokey shop and weigh the merits of the Spin Mill 64 versus the SM6 or SM7 in a 62 degree. They can likely explain why it isn't offered anymore. Note the supplier of a 64 wedge for renown LH PGA pro doesn't offer more than a 60 for LH's. It may be time for a change with the enhancements they've make in the 5 releases since the Spin Mill.

Bill M,
What shots do you use a 64 degree wedge for?

where I play the rough can be very rough, its great to just get out of it, very deep bunkers helps getting out, shorter shots out of some of the mentioned by green to get on green,i love to be able to swing hard and just get it over bunker etc to the pin that is close

How can I identify the model of my Vokeys? There isn't an "SM#" or anything identifying them, and I purchased them second-hand.

Photo below.

Also, I believe that the USGA groove rule only applies to "expert players" and USGA championship events. Average/amateur players would not be subject to the groove restrictions, unless something has changed since the source I found on the internet was published.

Thanks!