Between my 2 tribes, we chop and change depending on the dance, the weather, the rest of our costumes and general consensus! Perth is pretty warm most of the year so I can relate to the dripping sweat and the headache with most forms of head wear.
I havent worn a turban at all with Free Spirit, (GC based), and I'm not sure they ever have...I'll have to ask! We have coloured dreadies and a flowery headband, usually worn seperately. Sometimes we add a veil and other times, wear just a simple flower or 2 and maybe a scarf as a headband. We did perform at a masquerade party once and made amazing masks ... talk about OTT...but that my girls!!
Tribalive! (ATS based) have designed a pretty slip on headband with sari patchwork material and decorated with kuchi, shells, coins etc for an instant 'dressed up' look. Recently we had a yearning for turbans again and introduced some of the newbies to the fun! I think the turbans just add something magic (once youve got the b***** things on and secure!) Personally I still think its a fantastic look and feel, especially when youre short like me....and at the moment - short on hair as well!! I have worn my wigs in a couple of performances and they are soooo hot, and itchy and i'm constantly worried if they are on straight ...or even staying on! Also, the act of getting together and helping each other get the turbans on, sharing scarves,bits of jewelry, flowers etc is a lovely part of the tribal 'bonding'!
Anyway.. I think head wear can vary to suit the climate, the costume, the music or the whim of the group.