If a route is going to be signed, sign it with the riders in mind. Bigger signs and greater area (arrow (not triangle) shaped) of reflective material. It'll mostly be at night when errors may occur and when riders are tired: the challenges of the Perche after Mortagne come particularly to mind, as well as aiming for over-signing in the towns, entry and exit. A 'pace line' of headlights returning to 3 junctions helped our group either side of Wednesday (2359) midnight.
Glad I wasn't negotiating the Rambouillet finish area as a full value rider middday or 5pm Thursday (90/84 starts) for the reasons stated above. Surprised that riders and their supporters on the thoroughfare of the motorhome avenue weren't more aware that thousands of riders would be coming that way, yet to finish their ride. There needs to be a segregated exit route for those who've completed and a ban on vehicular movement there till 6pm Thursday, except for emergency/organising team vehicles. Unless that interference is designed out, I guess this needs (in short supply) volunteer help to police.
Thought the finish was fine and far too much whining has gone on. But I too am glad it was dry round that courtyard. The brevet check/stamping stations worked well there, and for me they were the model of efficiency at every control.
How about PBP shares plans of the layout of each control showing key features: entrance, exit (routes), bike racking, brevet control, loos, various eating options, shower/sleeping, water bottle filling, mechanic? Have any 'walk-round videos been made of the various controls. For a newbie like me, previewing those would have been excellent preparation.
Sizing advice for the tops and safety gilets cannot be difficult to get right. Based on the posts in this forum I chose 'advisedly' and got both sizes dead right (XL and M) but so many didn't and for clothing where there's no 'return' this (sizing advice) is doubly important.