Thanks for all the input folks.
I have a top mount guide running on the other bike with the 28t bling ring and clutch rear mech and it works perfectly-no dropped chains in 6 months. The XX1 was for my Mojo HD-the top guide doesn’t quite work for it.
The HD has a specific Full guide made by MRP but its for 32t minimum front rings. I could always take the tools to one and attempt to modify it but that could end up being a costly mistake. The is a BB Mount AMG Guide coming out that will work but unsure when these will actually make it to the shops.