If by Tsunami you mean lawsuit: Yes.
I'm all for a tournament ball to keep old classic courses relevant as major championships venues (pro and am). But, for the average golfer on an average golf course the advances in technology have made golf much more enjoyable. I cannot imagine the "greater good" of the game being served by rolling back equipment. If the USGA was going to act on golf equipment the time to act was 10 years ago. Now that the average golfer has experienced the wonders of 460 cc low moment of inertia drivers and multi-layer golfballs they aren't going back without a fight. As the old saying goes "how do you get them back on farm when they've been to gay Paris"
The lawsuit will come and be used as leverage by the equipment companies while they estimate how much they can sell on a "Replacement Basis" should I & B specs be rolled back.
If the USGA and the R&A roll back the specs, the equipment companies will clean up in profits and a vast number of mid to high handicappers will find something else to do on the weekends. The game is too hard on them already.
We have kicked this dog around some many times on this site that I am surprised that it still comes home to eat.
Let's see, rounds are down, participation is down, entry to the game is the highest price point that it has ever been in terms of disposable income which is shrinking due to speculative commodity pressures in oil can other commodities, and now we'll have to replace all of our stuff.
Deal or No Deal? "I just spent $500 on a driver and it's illegal?"
Regulation has always been a great catalyst to industry (Dripping sarcasm here), and I really miss shooting balatas up the elevator shaft at 225 yards off of one of the rarest woods (Persimmon) in the world...
Who wins here?
The USGA (If it survives the ensuing litigation)
The equipment companies
Old, established clubs that have very restrictive guest policies whose layouts are museums
The very talented golfer/ball striker who wears out the sweetspots on his Hogan Apex +1's
The losers:
Joe Six Pack golfer who will have to go to the range to figure out how to hit the new/old equipment.
Golf Course Architects who will no longer be needed to renovate/revitalize classic layouts.
Land/Golf Course Community developers who can now sell lots on the abandoned tees that gave them a 7,500 yard layout.
At worse, the line for I & B specs have been drawn in the sand. The very least that the ruling bodies could do is tell the profiteers: "No More."
A roll back of specs will be as well received as "New Coke" was in the 1990's.
JWK
Nonetheless,