Hanging down the front. Then it doesn’t stick to the wall when there’s condensation.
Having a Park bog roller holder though, one can have it any which way one wishes very easily though. Head angle is a touch steep for freeride wiping though, and over agressive use can lead to the QR failing and the roll pulling out the holder, with potentially catastrophic consequences. Swapping to a Shimano QR helps, but I’m waiting for a 20mm maxle compatible version to be released before upgrading.
– oh and it’s 4 wipes – an up wipe, a down wipe, a dry wipe and a polish. 🙂