Originally Posted by Lowell Goudge 
Seems a bit fiddly inside, "cheap" if you don't mind me saying so.
I took a sigma lens apart (it was junk and I was going to use the mount to convert a K to KA (but that is another story)
It had a very solid contact block, where all the pins and springs were retained even when you took the block off the back of the mount. This sounds almost like pandora's box, once opened you'll never get it all back in. As I said you did a good job.
Seems cheaply made, I agree. But I paid a good price for it and it was going to be an expensive paperweight. That's why I went ahead and opened it up. It ceased to be difficult when I began to have faith in my ability to get it done. Is there a moral in there somewhere?
