Had a similar problem with GPR exhausts. I had to move the, OE Yamaha , upper pannier rails out by 12mm, at the front and rear mountings using spacers and longer bolts. The bottom of the Yam panniers still sat on the lower supports but, from the rear, the panniers don't quite look parallel to the bike but a bit more like a pair of dangling saddle bags. I had to do this mainly because there wasn't enough space for the release lock to operate as it connected with the GPRs' cans rather than a heat issue.

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I have a lot of growing up to do. I realized that the other day inside my fort.