
I remember them. Were somewhat popular in the gulley where an exit not practical. Sometimes there was a short break between the two sections...just enough room for the rider to catch his breath and start the next section. Dismounting to walk or inspect next section not allowed. Sometimes they also ran non stop thru the two sections.
The NATC and FIM have outlawed them (if my memory serves me correctly) at Nationals and WTC events. But we are WOTA...we can do want we want
