While he is recovering, they (Sand Sport) should do a "best of" on his articles. Alot of people haven't read them all and it would show a great respect to him and his family.
All the swith is, it's a dry set of contacts. The rating is how many amp can flow thru it. It probably has to be explosion proof switch being that is near the fuel station.
If it has the altitude adjustment that is black plastic, you have to break the plastic to get the air screw all the way out. Then you can clean it and it should run fine.
One of the biggest problems is, the rails start on the right side and cut directly accross the hill when they wheelie. They take a totally different line than the quads that are going straight up the hill.