I have been reading a little bit about creatine and it's effects on power.
I tend to train a lot for 'functional' strength, that is strength without the weight gain.
As I understand extra creatine in the body will allow a person to work the '30ish' second ATP-CP energy system for longer and/or harder.
This is good for me because I am looking to gain sub-maximal power in the form of off road cycling/running.
Are the weight gain issues associated with creatine likely to outbalance the gain in the sub-maximal power from creatine in the context of mountain biking / XC running?
Interesting question. I looked up information on the use of creatine for endurance. Some of the information said it would help performance while other information said it did not.
You need to experiment with it to see how it works for you.
With that said, I'd suggest you look at glycerol. Glycerol has been shown to be effective decreasing dehydration. Huge drops in athletic performance are note a small percentages of dehydration.
Also, which is better: creatine monohydrate or Creatine ethel ester?
Creatin monohydrate works.