Well, . . ., one motor or two in the RMT first run aside, the early (pre-mid 2015) are not what I would ever recommend that someone buy. Before I got "educated" on all of this, I bought a NIB one from a dealer during the time of the RMT liquidation sale, and I had to put the throttle on my transformer all of the way to the top to get it to run at a medium low speed, which meant that I couldn't run any other loco on the layout a the same time. I sent it back to dealer the very next day for a full refund.
I wonder if it is possible, that the very earliest Beeps by RMT did have just one motor, and that after finding out how slow the things ran, RMT went to two motors and "warehoused" all of the very early run because of so many returns. When they did their clearance sale this year, I think they sold everything "Beep" that was left in their warehouse, including the earliest ones.
I noticed that in the clearance ad, they were actually selling the frames with engines only, without shells. So, it is also possible that they had a large crate of the old unsatisfactory frames and engines in the parts inventory, and then just put their left-over shells on these and sold them as NIB Beeps.
Mannyrock
