I don't really. But why not give it a try and let everyone know how it works out...the more workable options we all have the better. Butyl without the backing is a known good between panel sealer.
To be perfectly honest the 3m option was only really supposed to be a short term stop gap repair, I had every intention of doing an R&R full monty job.
After a Spring get ready inspection the next season it still looked so good I just left it, it's been 7yrs.
I'll ck it again in a week or so but I don't expect any surprises.