Ive used my DC 13.4s for about 9 years now and have only had to replace the ear cups once.
They are a good reliable headset and have served very well through my piston days.
I have just bit the bullet and ordered the Bose headset as I am sick of the noise from a couple of screaming garretts (hopefully for not much longer!!)
Anyway something I have just noticed, the band is made from Magnesium and is a highly flammable material. From flying the 404 with a magnesium wing spar I remember if you had a genny failure which was geared and it lit up, it was a land immediately event wherever you could before the spar got a whiff of a flame.
What do you fellas think of magnesium in a headset?