Well, I for one am not parting with my JLC version...it has subtle differences from the newest version that I've come to appreciate, and if I want to double-head, I'll wait for a Legacy Class A! (Fingers crossed).
The JLC version represents the last Y6b manufactured, and now that I have 2171, I think it's awesome to have bookend models. I think the JLC version represents Lionel's push to solidify their place in 3rail scale model production. FWIW, when the JLC versions of locos came out, there was no way I could justify the expense, so I will concede a little wish fulfillment.
Some things I've noticed that differ on the two models:
- Red paint on valves near the cab on JLC, not present on the Legacy mod
- red paint on the forward brake lines on JLC, not present on the Legacy mod
- (I suspect one can simply paint the valves and brake lines, but I'd rather keep it as delivered)
- running gear on the JLC version is brighter (I prefer the Legacy version here)
- "graphite" on the boiler front on 2171, JLC is black
Of course, the smoking whistle and generous smoke output on 2171, correct steam chuff and more robust sounds are a given.
At the end of the day, I like them both, and will have no problem draggin' coal with 2171 or 2200!