Out of time ejectors
 

What is the cause of ejectors that are out of time? A difficult/expensive fix?

Contact DelGrego. That's where I would send it for an ejector function issue.

or contact Brad Bachelder. Brad timed my VHE ejectors last year. They have performed flawlessly. Lawrence D. works alone which impacts turnaround time.. Brad has a team of at least 7 competent 'smiths' and his work is also excellent. Turnaround time is excellent.

Larry D. always had any ejector problem of mine done with in 2 to 3 days, Scott

Out of time ejectors are caused mostly by the trip points on the combination sear wearing and being out of alignment.
This is the part of the sear that is contacted by the step on the roll joint when the gun is opened and actually trips the ejector to throw the shell. If the trip points are out of alignment, ie: one sticking up more than the other, the roll joint will contact them at different times as the gun is opened. This causing the shells to pop out one after another instead of together.
This can happen due to wear of parts, like if one barrel is fired more often than the other, the tip will wear more. Or in the event that a combination sear was replaced. All hand fitted guns means that no two parts are identical. The tips need to be worked so they sit in the same position next to each other.

Boys, send your guns to Brian !!!

I hate working on Parker ejectors! But it is a required evil sometimes.
There are just so many things that can wear and go wrong. Not a simple system at all.