Though I quite liked straight bars with Egon bar-end grips I wanted to try out some loops on the Mk1 Longitude for long rides . Glad that they were affordable as the extra cabling, bar tape and new riser stem bumped the conversion up nearer the price of the basic Jones loop bar, which given said extras required was well out of my budget.
I tried the On One bars first with a 110mm stem with little rise. Same again with a 90mm. Both had me feeling a little bow-backed/crick-necked so I bought the longest 45deg stem I could find (90mm), some Ergon GC1s and angled the bars slightly back/down. Config seems to be a great improvement, at least on the short test rides to date but planning a longer multi-day tour so will see how it goes.