SJohnRoss , (edited ) I've been trekking through the #MERP books, and sure enough, same basic pattern as Space Master, where the adventures are at least 20-25% likely to be high-trust designs.
I've even revisited the one MERP book I had a copy of in the 80s: Perils on the Sea of Rhûn ... and the writing is a bit stiff, the organization a bit off. BUT: yep, still some HTT adventure to be had! I bounced off the writing as a kid. Almost did again.
I'm so sorry I didn't know you back-when, ICE. 😥