On Sunday, November 10, 2019 at 9:30:01 AM UTC-5, Charles Longley wrote:
Good morning Bob. From a club standpoint it probably doesn’t make much difference. From a possible personal airplane that you let out for towing it would make difference. Restricted means just that. Towing glider or whatever the restriction is, ferry flights, training flights, etc. Look at 91.313

Standard Airworthiness certificate with a 337 for the tow hook is a reasonable route to go.

Good evening Charlie, it actually is up to the FSDO to determine if they want to change the restriction application. Some of them just leave them the way they were and do not worry about changing the restriction classification. Why change it?? Are you planning on teaching in the PAwnee, that would be very uncomfortable. There is no provision that states that you cannot fly the Pawnee anywhere you wish, I have had a couple of mine into some pretty big airports and never had an inspector ask me what I was spraying.
Keeping the Pawnee in the restricted category brings about many benefits. Bob