I’ve been using an additive for the 10 years I’ve had this Y. Brite Star at the beginning and Sta-Bil Marine now. 1-oz in every tank.
To me it’s a personal choice😊 do it if you want and if you think it’s a waste don’t.
Here in SoCal we can drive all year round and I do every weekend.
I don’t add a lead additive but put in some 112 Sonoco every so often because I have it.

56 Vic, B'Ville 200 MPH Club Member, So Cal.