I recently purchased the new Proto 2000 F7A & F7B’s from Walthers. The couplers aren’t like anything I have seen. Very tiny springs on these and the docs are a little unclear as to where to put them. Regular KD couplers are to big to switch out. Does anyone have any info or experience with these. I would like to get these running on my layout. Any help would be appreciated.
Thanks
Bryan