The earlier ACW ONTC sets that Ken Osen sculpted when he was a part owner are perfect matches to past and current WB ACW figures and sets. I have the Federal "Loomis' Battery" and the Confederate set with Confederates in the cornfiled at Antietam, I believe it was entitled "Last Full Measure". However, with that said, after Ken left ONTC, the company contiued to produce several more ACW sets sculpted by another artist. These sets depicted Federal Camp life and also sets from the ONTC "Images of War" series. I always felt these sets were just a bit taller/bigger than WB figures. I have Images of War set #IOW-1001 "Forever a Rebel" which depicts quite accurately the 3 Confederate prisoners at Gettysburg from the well known period photograph. Although, exceptionally well done, the figures in this set are slightly larger (taller) and because of this I decided not to collect any more of the post-Ken Osen sets. Please understand that I am pretty picky when it comes to compatibility issues and what I may think to be "too tall" may not be an issue with you, especially when working with a mixture of figures.
:smile2: Mike