I was waiting for someone else to start it but had to take the plunge to tell you i just did my w5r3. I managed it but am hurting. Started off too quick and was wrecked 5 mins in but slowed it down - kept going and got to about 14 mins in when my ankles started really hurting - i kept on going anyway and was v relieved when raaawb said that was it - i then proceeed to hobble home - the bath is filling as i type and my ankles are painful but still that i did it.