real ones are banked very much like standard fixed-bogied inverted coasters. You really notice the swing on direction changes. Where inverted coasters snap into the banking, suspended coasters sort of delay and lazily drift into the turn, or sort of fishtail about if the forces are high enough. And my personal favorite, swinging side to side after a hard turn unto the brake run <3 Other than that they pretty much ride like Vekoma Family inverted coasters.
Because swinging objects bank themselves, suspended coaster lateral forces should almost always be near zero or relative to the degree of tightening on the suspension. No matter what the banking of the track itself is. I'm not sure there is a way for NL2 to calculate what the actual forces applied to the riders would be. I would guess NL is looking at the bogie alone for the calculations to position the body as more of a marionette. if this is the case it would be setting the banking of the track as a zero position and using the lateral forces applied there to swing the cars instead of the actual momentum and weight of the cars as they are pulled into turns. You can see this if you bank brakes and E-stop.
I'm thinking that the overcompensation of swing force TylerE noticed would be an attempt to simulate car sway during otherwise mostly static turns. They really do sort of fishtail and I can see that being very tricky to replicate. Having a screen to personally tweak that would be fantastic.