I’ve always wondered why more people don’t run a bash of some sort on single ring set ups. I tried it briefly without but, after a couple of bent chainrings and a few snapped chains from damage, stuck on an MRP AMG.
I tried a Blackspire something or other first, but the top guide was absolutely awful (flexing all over the place and didn’t really fit a 32-tooth shimano ring) and refused to keep the chain on.
The other option I considered was a bashring and one of the little Hope top guides. This works out at about the same weight and would have been cheaper, given that I already had a bash, but as I was by that point paranoid about losing chains, I wanted a ‘proper’ guide. (I still feel the need for one.) The MRP has been fine so far.