20180623_072029 by rogerzilla, on Flickr
Parts transferred from Hewitt Cheviot. The colour is called "Grandpa's Thermos" by Surly. It's that or black for 2018. I might lower the stem a bit, or fit a 100mm one. It's slightly shorter in the top tube than the Hewitt was, and the extra steerer height pushes the bars backwards too.
Looks very similar to how I have my Hewitt setup now after it's winter component refit after almost 10 years of service. BTW I rarely ride out of the saddle on this bike, as am more of a spinner than a masher, so I've never encountered the issues riding out of the saddle you describe. Smaller frame too (54cm), which may make a difference.
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I could do with a higher front light bracket and need to make the front dynamo wiring neater, though...
Quite liking the bar end shifters, though, they work well on a tourer. Had 2006-era Veloce Ergos on before, but they're being refurbished and will go on a neo-retro road bike build I have in the works