The current lack of a decent crud guard bugs me too. I have the current crud guard on my main bike, and it has weak points I don’t recall on earlier designs.
Specifically, it rattles A LOT at the join between the two moulded components (the actual guard and the clamping arm); this is unacceptable to me because I’ve made sure the bike has no rattles other than the chain. Also the single alloy bolt is prone to seizing if not kept well greased – I don’t expect to have to maintain a mudguard.
The crud guard MK1 is my favourite design too, but it isn’t going to work or sell well in an era of full bounce. I’d like one though as all my bikes are hardtails.
Mr Tomkins are you reading this? I’ve been using your products since day one, and for the first time I’m actively looking elsewhere for something to keep my arse dry.