still using the sweat gutr, it's great, channels sweat down the side of yuor face, or more accurately for me, into your helmet straps.
Wouldn't mind using that sweat band thingy above, looks a bit bulky under helmet, does it compress ok? I've had a few sweatbands that i couldn't use well with helmets as i'm in between sizes with a 56cm head.
Keep two for proper buff usage and cut the other into 2" thick strips to use as headbands – you'll get 6-8 out of a standard size buff. They soak up tons and prevent drips, simple enough to carry a couple spare if you have a stop, no-one likes putting a sweaty headband back on after all. If you cut at less than about 2" they tend to roll in on themselves which then makes them less comfy.
it's the helmet. i've got one and i have to remember not to raise my eyebrows after sweating as it compresses the padding and wrings the sweat out all over my face. horrible. slightly improved by a buff, but from now the zen is for winter. (good timing).