When your time costs little or nothing I see no problem with taking the care when disassembling to try to reuse as much hardware as possible, just be pragmatic that you may not be able to reuse everything that you take off for various reasons.
Hardware stretching and consequent bolt loosening is something you need to be aware of. Poor quality hardware can have a big impact on that, especially the washers. If they are too soft then it will be a struggle to keep the bolts tight. If you have a recess in the moldboard frog for the washers to fit into then they should be of an outside diameter that actually fits inside that recess. It might be stating the obvious but you'll struggle to keep the bolts tight if the washers dish when you tighten the bolts.
I don't think anyone suggested to tighten the hardware starting from the centre of the cutting edge and working to the outside, then once you have it all tightened go back and do it a 2nd time in the same sequence.