If you start Tuesday or Wednesday, you will be behind the Saturday/Sunday group and find better mooring availability and less stress.
Yes, starting 2-3 days off set from majority changes the landscape as far as how crowded anchorages are.
Also, as Donald pointed out, IF charter begins as a sleep aboard on Saturday and ends on Saturday, then tis is actually a 6 day charter plus a sleepabord (or 6.5 days). Some advertise this as a "Week" charter, but it is not quite a week. Just be aware when comparing "apples to apples"
