High viz or cool?

evidence ? or what you just said is merely hypothetical.
btw i think your wrong.... just for the record.
I'm not willing to let a post like that fester for others to read and perhaps follow ... it's irresponsible IMO, because Hi-Viz, as a driver myself, makes a very significant difference when tracking a cyclists in the mirrors.

that's the thing mate, you're a driver as well as a cyclist, you do look out for other cyclists, and therefore were able to see the difference which is not what I'm arguing about.

what I am saying is that if a drivers is not looking out for cyclists on the road, the hi-vis top make little/no difference.