A BIG WELCOME to the G.T.A. FORUMS Jonboy,
We are always happy to have new members here, especially members from another country, as we are an International Forum. We look forward to your posts from Spain, keeping us informed on the news and developments in airgunning there !
As for your question, I havent heard of anyone putting a damper around there spring. I would think it would slow down the springs action causing a loss in velocity, and perhaps interfering with the spring over time ?
I'm sure that there are more informed members here that may have heard of this, or tried it. They will most likely add there knowledge as they come on line.
So post often, don't be a stranger here. We are all part of one big family here on the GTA, cause THIS IS JUST A GREAT PLACE TO BE !!!!