Reply to P or Z-Pro series Cokin filters for this lens

Hi,

I’ve just bought the 24-120mm nikon lens and looking to get some square filters for it. I’m mainly looking at Cokin and the P series filters will fit the 77mm thread but they suggest going for the larger Z-Pro series as there may be some vignetting between thread sizes 72-82mm with the P series. Has anyone come across this problem with this lens? It’s just if the vignetting is only minor or not an issue then I would rather go for the P series as they are nearly half the price of the z-pro series.