Fringe Dweller it sound like you have a Voyager. I updated mine to a P3 - only because of the P3 having a digital display whereas the Voyager only a a LED light. That said the Voyager worked perfectly while I had it. (In fact, I still keep it as a standby.)
I left my P3 on Patrol.
Got the one down now.
Does same job. just not so many settings.
Only thing to remember. is ALWAYS.
tune it first and every time you connect.when you first start moving.
make sure it's not skidding the wheels,
or not applying them enough.