I have done a longer day (142 miles) and felt good enough to do 80 the next day, but never on the first day of a tour. That was loaded touring with gradual climbing over one easy pass. It was also a trip where I could have stopped along the way and taken an extra day if I wanted too.
It is definitely possible, but would it be fun? Only you can really answer that. Personally, I tend to only do really long days when I feel like it that day and probably wouldn't commit to it ahead of time and be locked into a schedule. Schedules with firm deadlines are something I try very hard to avoid when on tour. Everyone is different though.
Last edited by staehpj1; 07-25-11 at 12:17 PM.