After a long years experience, GWS RD keep up date our products inorder to get a better performance although GWS WW-IIs were very popular every where in the world.
GWS War Birds 400 Series will be come soon.
There is nothing change of the foam pcs, but we feel our WW-IIs fly even more powerful with our EPS400C D gear drive and stable than before.
When EPS400C gear drive with 2 cells Li-Po with EP1060HD, they fly smoothly, without tail heavy.
While you may also use 3 cells Li-Po with EP9050HD, then, she become a hot shot!
Although this change not be started on production line yet, but will be soon after the new color box designed and instruction manual had written.
You may try by yourself, if you are in a hurry to see this great result.