Memorial Ride

We should do it at rush hour on the grounds most fatal cycling accidents happen during the commute and get reported as road incidents so motorists don't have to go through the trauma of delays.
A healthy delay caused around the worst areas by a troupe of riders in white would make a bit of a statement no?

+1 Yes
Weekends in London are full of 'minority' marches/protests/parades and so there is the danger that a memorial ride would be perceived as just another 'cyclists doing their wacky thing again' and would not have the impact that doing it at rush hour would. This is a serious issue and I for one would willingly take time off work for it if necessary.
Just my thoughts...