Suspension setup is definitely an art, and it's always evolving. Swapping out the shock isn't a big deal provided you have a way to support the bike while making the exchange. From what I've seen the 959 doesn't have the dual linkage settings the 1199 / 1299 have so that's one less thing to worry about. Your main issue will be setting your sag after the install as you really need two people to do it unless you have an electronic sag measuring unit like the one pictured below. The shock should have been fitted with the correct spring for your weight when you purchased it. Always wear your gear when setting the sag as it gives a truer picture of rider weight. After you get that set, I would set the clickers somewhere in the middle then make your adjustments from there as you ride the bike. That is unless you have some recommend initial settings from a reliable source. Keep in mind there are no perfect preset suspension settings as there are many variables. Important: when making adjustments as you ride the bike, always make them in small increments, (1 or 2 clicks) write down your adjustments and only adjust one thing at a time, (compression OR rebound - never both together) ride the bike then make more adjustments if needed. if you adjust more than one thing you won't know what's helping or hurting. Hope that helps! Any money spent on a qualified suspension tech is always money well spent!!