I started to have the same issue with my Vinci safety towards the end of duck season last year...all I do now is take it apart (whicch is very simple for this gun) after about 5-7 boxes of shells shot but do not actually totally break down the trigger assembly and spray it down with hot water at my kitchen sink then spray it down.....solved the problem....I have never had an issue with it jamming....I mostly shoot 3" 1-1/4 Oz shells...no particular brand..what ever is cheap.
Besides that I have never had any issues since I bought the gun in 2011.
However my next auto will be a Breda which is made in Eurpoe....they make a model called the Grizzly...it looks just like the original SBE...Ed's sporting goods in Kaplan has them....