Just a 200 mile update. So far I've done some mixed adventure rides, 30 mile gravel race, and a fast road ride with others on true road bikes. I'm still very pleased with the 707!
During the gravel race, I hit plenty of serious potholes, stuck with the lead pack for the first 8 miles so it was about 8 people wide and no way to avoid them. I hit some hard enough to break my bottle cage on the seat tube and the down tube bottle fell out. Frame, fork, seatpost, and bars are still solid. Averaged 21mph, this bike is probably 2mph faster than my old Monstercross bike. This isn't my video, just showing the course, it even went through an actual gravel pit!
https://www.facebook.com/joe.miles.9484/videos/1424082484697432 Luckily fit is perfect. I tend to ride smaller drop bikes (but larger MTB's). I'm 5'10" with ~31" inseam and long arms, yet opted for a medium with 400/80mm bars. It fits like a 54cm bike, exactly like I wanted. I think my only two nitpicks have been the levers being mounted just above the sticky paste on the handlebars, so I had them slide down during the race. Seems to be fixed with some carbon paste and higher torque. Also, shifter cable friction may be an issue with the tight bends through the headset. I first built with Shimano SP41 housing and cheap Amazon cable with no lubrication, sometimes the front derailleur would get hung up going down to the small ring, and the rear would sometimes need 2 shifts one direction, and one the other to make a single gear change. I replaced both cables with Jagwire cables and used Tri-flow in the housings, the front seems perfect now, and I think the rear just needs dialing in cable tension, only have 1 ride since the change. If I did it again, I would've just saved up for electronic if I wanted to stick with full internal.