Buying skis with a 78mm width

here's the deal, i'm very interested in the 08/09 ninthward max peters (170 length). almost positive i wanna buy them. only thing that scares me a little is the width on these. they're 110-78-100.

previous skis i've owned:
08 ninthward butterlicious, 116-82-110
08 atomic urban punx, 107-84-107

and scratches that don't count because they were mad small



so will i really notice a difference with these? the butterlicious width was fine for me, same with the urban punx. assuming 4 mm will be unnoticeable?

looking to hit rails and jumps. thanx.