My wife shoots a SKB 150 20 ga and we usually use light reloads. Today we had several problems where the 2nd barrel wouldn't fire. I am pretty sure it is due to the light reloads not tripping the inertia system. The gun doesn't have a recoil pad so that isn't the problem.
Has anyone altered or adjusted their similar gun to accommodate light loads. At the end of the round she tried my 20 ga W 21 and hit 2 of the tougher targets on the course and said wow it swings itself.
take off the stock, very easy to do, not like a Parker, spray it up good with WD-40 and you should be good to go for 10 to 20 more years.
Dirty Harry