Some great input being shared on here. Seems like a lot of people are taking on board Mr Latte's recommendations and developing similar setups. I also have a similar setup to what's being discussed so hopefully we can continue to share our findings.
@Wmacky In relation to which effects you have set to which regions, there's no set rule, I'd just recommend using common sense and experiment to find what feels good for you. Here's a breakdown of how I have my effects setup (I'm by no means an expert but am fairly happy with my setup);
Shoulder exciters (2x Mono) - Road Vibration
Spine exciters (2x Mono) - Road Impacts
Kidney exciters (Stereo) - Road Rumble & Wheel Slip
Under seat BK-LFE (Mono) - RPMs & Gear Shift
Under seat legs TST-209 (Mono) - Speed
Pedals - Aura Shakers (Stereo) - Idle Rpms, Road Vibration & Gear Shift
I've bi-wired my exciters (against Mr Latte's recommendations) so am running 8 of them from 4 channels. This gives me less chance of over running them and means only 4 channels being required, but obviously less control than 8 channels.
I don't have experience with running motion but have read a few posts on here where people have. My only concern is there being a small trade off due to the isolation. If you create good isolation for the tactile then it may dampen the effects of the motion. I don't have time to look for the post right now, but there was a guy called Michael that came across this issue earlier in the year. Just something to consider.
Even if you don't have everything setup yet, try to have a play with SimHub to get used to the settings and effects. It's pretty user friendly once you stumble your way around it and is handy if you can start to familiarise yourself with it.
I'm happy to share my effects with others if it helps. Again, I'm no expert and haven't devoted a huge amount of time to perfecting them. They're very basic compared to what's achievable with multilayered effects and crossover body zones, etc.... but they do serve their purpose.
PS - Unfortunately there's no "how to" guide for effects at the moment. It is something that Mr Latte was hoping to develop this year but has gone on the back burner due to his own build and other family and work commitments. Hopefully it's in the pipeline still for the near future.
I hope that's of some help.