Meade eyepiece question Re: quality

Which eyepiece is of better quality?

A Meade Series 4000 Super Plossl multicoated.

Or a Meade Super Plossl multicoated which has Japan stamped on the barrel.

I appreciate any and all input.

Dan

Dan,
I was at NEAF & asked about this. I was told that the older ones Marked with JAPAN had a 5th lens in them & were better optically. Regular Plossls have 4 lens in 2 groups. Meade added a 5th lens & the SUPER name. Later they switched to the 4/2 set up like all Plossls but didn't drop the SUPER.
The person said they did this while still making them in Japan. I don't know how to tell if an old one is 4 or 5 lens short of taking it apart.