Bwhahahahaha! Those last few comments ROCK!
I love Biopace. I know they quit making it. I can't tell you how many articles I read (pros and cons) on the subject. However, I did yank them off my touring bike! (1988 Rockhopper Comp) I like them because I like old bike stuff. Kind of trendy....
How many miles does it take to get saddle sores? ONE is right!
Two really important things to keep in mind before a tour (there are really lots more than two!) 1) ride your bike a lot. This will get your sit bones ready, 2) Don't ever take an unproven weapon into battle. In other words....try not to make any major changes to your bike before a long ride.