I run my 2012 Five with a 160mm Deville and offset bushings. Its ace but I’d quite fancy shoving a slackset in too, just to see what it felt like!
How’s the lower BB working out for you with the bushes? They were my first thought, but the angleset messes with everything (seat angle, etc) a touch less so started heading down that route
Im running a 2011 five with offset bushings and 160mm pikes. Cant say ive noticed any issues with lower bb. Bike feels so much better for the riding I now do, although the front end is noticeably lighter on climbs but that’s a small sacrifice to pay for getting it spot on for the descents