i kinda find it weird to start your M+ collection w/ a non-canon valk, but it could just be me.
anyways, there was a recent re-issue of the YF-19 Isamu ver. that was released 1-2 months ago, before these repaints came out. mr. chogokin did a quick review on it... iirc it's on the same thread as what David posted. EDIT - page 20
i'm not entirely sure, but what Graham and ff95gj said about the repaints is basically what mr. chogokin said in his review on the re-issue. and based on their pics, all three still exhibit the same gaps in f-mode.
hope this helps...