Installed on Jones H Loop bars (660 length). Both FEL & Lunchbox. Will be doing some trials using a 14-20L drybag mounted with my sleeping kit. Have a Salsa Mukluk 2 (2015) with Bluto fork. No problems so far with clearance, bottoming but haven't carried 'a full load' yet. Nice stuff though once I figured out how to attach everything (there wasn't any directions with the product.)
Very nice people to deal with (via email; responding extremely quickly.)