Problem with create archive from mini-DV tape

Question

I have a fairly large collection of homemade mini-DV tapes. They are getting a bit old and I would like to back them up to my computer as well as have easy access to the footage with FCP.
The tapes were made on a Sony TRV8 camcorder (either directly or as backups of older VHS tapes). I am using the same camcorder for playback.
The camera shows up as expected in FCP. My goal is to "Create Archive" on each tape. Here is where I ran into some problems.
My first tape ran about halfway through - around the 30 min mark and gave me a "end of tape" message. The footage was captured properly, but there is still half the tape to go. I tried a second time and only reached the 5 minute mark when the archiving ended with an "end of tape" message. I am on my third try as I type this and have made it to the 15 minute mark.
I thought to possibly create multiple archives, picking up where I left off. However, whenever I select "create archive" FCP insists on rewinding the tape to the start. This behavior differs from the Apple KB article which states archiving will start from the current position of the tape.
Adding to the problem is an issue of jittering playback.
When I playback using the camera controls of the "play" button in the import window, things are fine. When "Create Archive" handles the playback on its own, the pictures jumps as if it is on a trampoline. Sometimes I am able to hit "stop" and then "play" to get a normal playback - sometimes hitting stop stops the archive with an "end of tape" message.
Any ideas on what is going wrong or how to work around it? I have over 100 tapes to archive. If each tape requires numerous attempts to archive, this will never get done. I thought the archive process was supposed to import the entire tape?

Answer 1

The bit about archiving from the current tape position is from Apple:
"Final Cut Pro begins archiving from the current location on the tape."
From Final Cut Pro X: Create and manage camera archives
Last updated 9.16.14
Obviously, that is wrong.
The part about archiving ignoring timecode and just archiving the entire tape I have read in several online forum posts. Some I believe are in this forum. These same folks usually advise to use archive rather than import in a bad TC scenario. Again, it seems that wrong information.
I am now simply doing an "import" of a tape, which appears to be working as expected. Seems either the age of the tape and/or the playback device is causing less than perfect timecode. Lot's of stutters resulting in a single "scene" being imported as many separate clips. I understand what you mean by assembling when ready to edit, but this is not practical. It looks like some areas are broken down to clips of 1-2 seconds (some even less).
What a mess. I'm looking for a mini-DV player as I suspect my camcorder may be the culprit. Not easy to find one.
Seems I will have to assemble the multiple clips to recreate the original. I am hoping I can then output the assembled sequences to DV files to maintain the "original" quality of the import (which should be the same as the tape since it is all digital). I would then create some FCP libraries to organize and store the clips.
Was really hoping to simply do the camera archive thing. My tapes are all cataloged and organized. Having a number of archives which match each tape would have saved a lot of time and trouble.
--and thanks for the help. It's a bit frustrating trying to preserve old tapes, especially when things don't work how you expect. Any workarounds or ideas to get a library of raw files out of this mess is appreciated. IF I can get that far, I plan to back up to M-disc.