Not sure id compare 15 year old 800 twins(which were in their infancy) to todays. Not even in the same ball game as far as power, efficiency and most importantly reliability. todays big twins are really impressive. not gona lie from all 3. tooo bad Yamaha stays out, as they clearly are what the market demands.
Unless the 850 can go 15K miles without typical 2s rebuilds I'm not interested. Just not the right engine for me a big mile gas and go rider. I just don't want to mess with 2s maintenance 4s any brand is best for me.