Are the handles similar to the flexible rubber type strap handles used on the Roland KC300:
http://www.zzounds.com/item--ROLKC300

and

Motion Sound KP-100S: http://www.music123.com/Item/?itemno=97952

I find this type of carrying strap awkward, especially compared to the style of carrying handle which is molded into the speaker itself, like on the EV SxA100 or JBL Eons. I prefer the 'built into' the speaker handles because the speaker & handle is specially designed (molded) to allow your hand to fit (all the way) around it ergonomically (comfortably). In addition, the SxA100's carrying handle is situated on the 'side' (length section) of the speaker making it even more balanced (comfortable) for carrying one speaker on each side of you.

On the other hand, with my Motion Sound KP-100S with it's rubber strap type handle positioned on top, find it considerably awkward to carry (by its strap handle) very far.

I hope PA speaker manufacterers will take JBL & EVs lead in designing more ergonomically designed carrying handles which are also integrated into the speaker cabinet itself.

Scott