RE my up-thread comments about getting a longer-cage warranty replacement
After dropping by the LTWOO booth at Sea Otter, I got in touch with someone at LTWOO. He was able to confirm that there has been a running update to a longer cage that they expect works to 52t. I can confirm that it works correctly with a 10-50t cassette and would expect a 52t to be fine but haven't tested. He said there were no other changes to geometry, firmware, etc.
Since it is not on the website nor has a labeled version, I'm not sure how to ensure you would get this version though. When I got the warranty part, they checked that I could accept the longer cage since that was all they had in stock. But I can't speak to whether that is universal. If you have it in hand, the older version is approximately 82mm c-c on the bolts. The new one is ~90mm (Sorry, I only did it roughly while installing and looking at the pictures, I can't confirm more precisions than that)
However, it seems we might see a new eGR rear derailleur this summer with some of the features of the MTB series like the charge port going to USB-C