Chris, BLI & Riverossi make OUTSTANDING engines:thumb: , but i have 2 Challengers and 1 Big Boy by Athearn, and they too are SLAP AWESOME:thumb::mrgreen: , the detailing i feel is way better then the Riverossi, and they run FANTASTIC:thumb: , DON'T count out Athearns big steam:winki: .
you are correct on the fact that the IM cab forwards have some problems:frowns: . mine runs fine, but is a little noisy

ops: , and getting the sound in sync with the wheels was a real pain:frowns: , took me over an hour of adjusting CV's to get it close enough to make me happy. another problem with them is they are built just like the real ones, ONLY 1 set of drivers, the set farthest from the cab swivels, this makes them VERY unforgiving on 22r, and 18r is impossible. on ALL the REAL articulated engines the set of drivers closest to the cab was stationary, ONLY the second set of drivers swiveled.
Athearns big steamers have BOTH sets of drivers swivel, and are VERY forgiving on 22r curves:thumb::thumb::thumb:
Josh, as i mentioned several times in this thread, ANY roads UP took over is OK to post in this thread:winki::toug: .