Shaft length for wedges

[metroplex]

Are the shaft lengths for wedges supposed to be smaller as you go from Pitching, Utility/Gap, Sand, down to Lob? Or does the loft player a much bigger role?

[JYB]

there was just a post about this same topic recently but, many people like to keep their wedges shorter than their irons i.e.

if you have +1/2 inch extensions on your irons, some players like to keep their wedges at standard while others make the same adjustment, going +1/2 inch up.

As for lofts and lie adjustments, i would often believe that the wedges would go along with the rest of the group.

[jrode]

So is it all personal preference or does it make a difference?

I'm going to need +0.5 in all my irons when I eventually buy them, but I don't know what I'll do with my wedges when I get them.

[metroplex]

For my 4-PW irons, they start from 38" and drop by 0.5" until the PW (35").

I picked up a few wedges made by different manufacturers, and the standard shaft lengths are all different:
Gap W: 36
Sand W: 35.5
Lob W: 36

On the range, I could hit the ball just as far using the P, G/U, or S wedges but the lob wedge had a shorter range (80-100 yd as far as I can tell).