OEMs, not getting new wheels right now ($$).
The MightyPutty held onto the rim most of the day on Wed. I tried to take any rocks on the left so that right front wouldn't be as stressed, especially air downed like it was to 18 psi. Those lip edges were sharp! It finally fell off shortly before we finished Hell's Revenge, but THANK YOU for thinking that up, I'm sure it helped the sidewall not get sliced wide open.
That big missing lip chunk was just too severe for me so I met up with "circmand" on Sunday in some podunk little town in Northern AZ and bought one of his used 18" OEM rims. Now the chipped lip rim will be retired to the shed (and one day maybe used as a full size spare). I'm thinking I may buy another OEM rim from circmand in a while. His remaining ones had road rash on the rim, but still would be a great backup.