Originally Posted by urbanknight

Always use a new supplament on a training ride first. Then you can observe its effects without costing you a race should your body not like it.

Originally Posted by botto

Thing is, I don't see any point wasting them on my 1 hour+6 lpas races. I'll be doing a 4.5 hour group ride with 5 other guys on Sunday (and I have the feeling i'll be doing more than my fair share of work). Perhaps that's the place to try it for the first time?