[sebastien murat]

Benny,

Thanks, maybe he/she will decide to become a little diver.

I'm not sure what you mean, but if you are reffering to lead-up time, then the sooner the better. On the other hand, if you're talking about the last training session before a comp, then, I would say, in my opinion, no more than one day's rest.

The more frequent your training sessions the more long-lasting the effects. the more intense, provided that one obtains adequate rest, the greater the effect.

One should expect to see changes in Hct in less than one month.