Great to hear you are starting trials! The onza is a nice bike and tarty would never let you down (bring on rickrolling), get some videos up and everyone one here will help you with technique/tricks.
I've found that the tech lever is alot more powerful than the mono, it may be due to the ajustable parts and larger piston?
Correct me if I'm wrong! A friend of mine has a mono and my tech v2 always feels a lot stronger...
Riding alone can get you stuck into bad technique George will back me up on that since I still side hop the "wrong" way.
I find riding alone I never really push myself in fear of getting hurt and no one around to help.