Well not quite sure what you want us to guess at...
But if your talking about the metric sized hex bits which is the only big difference I noticed right away, though nice to have... historically very few kits ever seemed to have had them included. Always was just standard hex sizing
Though looking at all 3 sets to me the 106pc IMO has probably the best amount of the most useful SIZED bits for construction trades... 20 PH2, 12 SQ2, 8 T20 & 14 T25 in the 1 inch insert and 4PH2 and 3 SQ2, 2 T20, 4 T25 in the 2 inch.
So many of the others seldom get used. Especially with the smaller ph, hex and especially Torx as many times a screw is often recessed deep in a hole like on electronics and often I like to use my M12 screwdriver for that kind of work. And I have some long and narrow 3" insert bits though not Milwaukee brand that I do use.
Interesting to note Shockwave bits don't seem to be very popular with many users based on responses I often read especially here on TGJ
I bough a Shockwave kit once when they first come out and have not considered buying another, though the case is great
But I do really like most all the other Milwaukee Shockwave accessories a lot... bit holders, I have both a short one (2 3/8") which is my daily bit holder and the longer one 6" spins so true (hard to find that in long bit holder) and the 1/4" socket adapters I have all 3 sizes are just best IMO. And the magnetic nut setters are tough as can be though the slightly longer notched 1/4 shank hex ones that will lock into a collet are far superior to just the insert ones the old kits used to come with.