when at home i leave mine assembled and carry it outside in 2 bits.. the assembled tube and the base. i give the collimation a quick tweak but probably dont
have to.
after disassembling it i have found the collimation is worse but its not way out (except when it went over 20km dirt road at Easter

). i found colour coding the struts and reassembling in the same way didnt really help.
basically do it every time but with bob's knobs and the barlowed laser collimator technique its really a 2 minute job.