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.)

In Calgary. Just joined the forum today. Love to ride mountain bikes and dirt bikes. I wish our riding season was longer!

TigerT, I might be doing the same race... Alberta Rockies 700? I have property along the route up the 940 so I know the middle portion well. I agree what others say - be prepared, have plans in place, cook then change locations (bears have an incredible sense of smell), store food and personal effects safely away from you at night and be very careful on the 940 (traffic re: logging trucks and idiots.) I mostly fear the road portion along the 1A from Exshaw to the 940 as that road has barely a shoulder (none for a stretch) and the traffic and people driving it are suspect. I have driven / rode parallel on horseback, ridden my KTM 640 and my road bike out there. The horse (off the highway) was the safest option.
Enjoy the event. Might bump into you... still considering either the 700 or instead, heading south and following the Tour Divide route for a week for fun. (Have a friend on Glen Lake in Montana... near Eureka.)