RE: Newb has 2 new questions for each thing learned
Well... some good set up tips so far but I will add a couple of things.
The swash should be level and don't use trim unless you have to. You should ALWAYS have to add some rudder and cyclic input to keep it straight, this is only on take off and once you get into a hover 4 feet from the ground the left push and tail wanting to swing counter clock wise (viewed from top) is gone.
The reasons for the two are as follows: left movement is due to the tail blades pushing the air to the right and therefore the heli to the left, this mostly disappears once you get above a few feet; the second is the heli frame wants to rotate in the opposite direction of the blades, that's why you have tail blades to prevent this rotation but when you first spool up the blades aren't spinning fast enough to accomplish on their own so adding some extra pitch to the blades helps prevent this. Once the head speed on the main and tail blades are higher this also disappears.
My suggestion is to keep with the sim but also go through radd's school of rotory flight (google it) and follow the directions, he talks (writes) a bit weird but just follow the steps and you'll get a feel for what the heli will do.