David,
You shouldn't actually injure yourself if you have been swimming every (or every other day). The last 2 years I've done every possible postal event and I think the hour is hardest for me because of the time of year. It's winter, I'm bloated from Christmas, and do not feel like doing anything. The last 6 years, I've done the one hour and usually if I'm not sick before doing it, I'm sick two days later (viral uri stuff). If you push it, it will make you cry. If you stick with a reasonable pace, you should be fine.
David,
You shouldn't actually injure yourself if you have been swimming every (or every other day). The last 2 years I've done every possible postal event and I think the hour is hardest for me because of the time of year. It's winter, I'm bloated from Christmas, and do not feel like doing anything. The last 6 years, I've done the one hour and usually if I'm not sick before doing it, I'm sick two days later (viral uri stuff). If you push it, it will make you cry. If you stick with a reasonable pace, you should be fine.
