I have a 1966 Matador 16 that has given me trouble free service and it has been around the block a few times. I don't recall hearing of a trigger problem with them. It is the same design Aya had on some of their older high end guns. Aya seemed to get the reliable design early on whereas other Spanish makers didn't.
I have heard of one the Sears 100 having a trigger problem but it was designed a little different and was non-selectable which is usually more dependable.
The Matador came on the American market a couple of years after the 100 which was dropped and was basicallly the gun Aya used to break into the American market.
The Matador has selective ejectors, chopperlump barrels and my barrel regulation is smack on.
In my opinion, it is a very good quality gun for the price. The thing that knocks down the price on them is the PG and beavertail forend, although the Matador I has a more open grip than the II and III. The forend is a close hugging semi beavertail.
