1i10up... I'm no Indy... but, yeah, you reapply Chamois Butt'r in the porta potty. REI is now selling individual packs that I jammed in my seat bag. You get a dozen for $8. Not cheap but OH SO WORTH IT! For my STP ride, I reapplied at EVERY SAG stop... really glad I did... I was having saddle issues as it was... can't imagine what it would have been like without the lube.

My bro rides double centuries and swears by Bag Balm for anything over 100 miles... he said it stinks but doesn't absorb into the chamois like Chamois Butt'r does... I'm gonna try it next time. Costco carries it now!