Doesn't seem like you get many 10-60s in Oz. I got mine in the US when I first started and have found them to be the best for a non-ANR headset (against all the ones I've borrowed around the place).
One great thing a few posters might be interested in is that the cord is interchangable for quick adaption to rotary or military sets. You just order the extra cord from DC and you're set to quickly transfer between types without a drama.
The other thing is the boom is a "best of both worlds" set up, with both a sliding metal section and a flexible rubberised section. Although the 13.4 is light, I was never really sold on the boom (call me old fashioned).
The weight is only a bit up on the 13.4 and the cushioning over the top ensures you'll barely notice it at the end of a full day in the cockpit. Two very enthusiastic thumbs up!