I have the 737's and 747's from PMDG and love them. I also have the 4100 and am working through mastering it... Just wondering if I should buy the 1900 and then move it into FSX as instructed on the forum. But is it as complex as the 4100 in terms of learning curve. Also, what is the difference in the C and D models I can't seem to tell? Which one should I get? Thanks... bob

There are a few differences between the C and D models, and the most obvious are visual. I'd get the C model, because it has a few extras if I remember correctly. Both are nowhere near the J-41, however. They're mostly just models, with a decent flight dynamic.

Thanks for the info