A few weeks ago I bought I new 642 double action .38sp. It's got a real stiff trigger on it, had it measured with a cheap(er) quality gauge and it was off the charts. The gauge out went to 12 lbs, so a friend of mine is guessing its around 15 lbs.

I thought it would loosen up after a few hundreds rounds. Well I've put almost 500 thru it and it's still stiff as can be. This will be my main ccl weapon but with the trigger so stiff I'm not currently carrying it.

So I'd like to do a trigger job on it. I've watched videos online, and it seems relatively easy, but I've never done any smithing only shooting. I am however a mechanical engineer by trade and I feel like a handy guy, but I've never messed with guns. What is a trigger kit you'd recommend? And would you recommend attempting this myself or paying to have it done?