I bought our Beneteau 50 last July and the rig has never been inspected. I just bought an ATN Top Climber, so I can go up the stick at will. Do I need to have a professional inspect the rig, or is it something - with some research - that I can do myself?
I don't see any reason why you can't do a pretty good inspection of your standing rigging yourself.
If you are comfortable enough, carry a good camera and take some closeups of the areas of concern. You can show them to your rigger and ask his advise.
To inspect swaged terminals: Start with a brand new green Scotch bright pad and a magnifying glass. Wear a hat to keep the sun out of your eyes.
Spit on the scratchy and use it to remove all surface corrosion from the swage. Wipe it clean with a rag and inspect it carefully with the glass.
Look hard at any areas on the swage that had a buildup of rust. If there are cracks in the fitting, you should be able to see them pretty easily.
There's a little crack near the eye end of this fitting.
Look for areas of heavy rust buildup on the wire itself. If you see them. You very likely have a broken strand under it.
Take a little bottle of corrosion block or an equivalent oil. If you see areas of heavy corrosion at the spreader tips or clevis pins or wherever, you can puts a few drops on.
Look for chafe, potential problems and indications of halyard wrap at the top of the furler if you have one.
The ProFurl in this picture could have used a halyard restrainer even though they come with a wrap stop. A little close to that cotter pin for my liking.
And notice the mismatched clevis pin and hole at the top of the forestay.
Have someone on hand to flip switches so that you can test all the lights.
Lube the masthead sheaves if you can. You need to have a straw and a spray can for that though.
Have some tape for your spreader boots. I have always used 7 to 10 wraps of cheap black electrical tape covered by a few wraps of good white rigging tape. The kind that sticks only to itself. You get the strength from the cheap tape and it's protected by the expensive tape.
I've probably left a lot out, but just examine everything, look for anything that doesn't look proper and take some pictures of anything you suspect.
You'll do fine.