It looks to me after studying a Parker SST that to have it repaired a watch maker would be a better bet than a gunsmith. I am not including those craftsmen who are expert SST repairmen, because they are fully aware of the delicacy of the mechanism. I added Teflon lubricant to one such trigger and it has occasionally doubled for the owner. My mistake?
I don't know, but very possibly so. David

Yes. We have many warnings on this website against any lubrication on a Parker SST. Dried oil will cause doubling.

I, too, have a Remington installed SST on a Grade 3 12 gauge. It resembles a Miller but without the name stamped to the trigger. It was implanted in 1940. I started putting Miller SST on Parker and other guns in 1986 and have used them successfully without a flaw.

That is a common phenomenon. Ask Dave Suponski how I know that.

The Miller is a good operating trigger. Just the installation of some of them years ago could be considered crude at best.

Doubling ain't the trigger
 

Ok, I took Dean's advise and opened my mind to the possibility that I may be the doubling part of the trigger and guess what (drum roll) he was right.

I took the GHE to the gun club and shot 3 rounds of 5-stand, being thoughtful as to how I gripped the gun and how much pressure I put on the trigger while shooting the first shot.

I have a GREAT Parker GHE with a Parker single trigger.

The only time it doubled was when I had to pre mount for a long trap target and I really got into the gun and forgot about not holding it too tight.

What a man can learn on this site......thanks guys and especially Dean for having the courage and tact to bring it up.:bowdown:

Woof, woof! An old dog really can teach a youngster new tricks. Good shooting now with your Parker. Just remember to always be in the groove when mounting. Even if you have to adopt the mantra "mount" when looking for the target.

It seems there are a lot fewer Parkers with single triggers and the price is higher if you are looking for one. I kind of prefer double triggers, but have a few with single triggers