3 rides weekly

["Beth Glace" <lb@nismat.org>]

I was wondering if anyone can shed some light on the discrepancy 
between what is recommended on the endurance site for starting a 
horse in endurance and the 3 times weekly that has often been 
advocated by ridecampers in preparation for a 25 miler.  Are we 
assuming that we are conditioning a horse who has never been started 
in any other discipline or who has been on total rest for an extended 
period of time?  Most horses who are being used currently in
another discipline are already likely doing more than 3 days of 
mainly walking each week.    Any thoughts?

Thanks,
Beth