I had a hard time getting the 956 to run anglewinder but that was on Scalectric track with magnet and stock wheels, I tried various offset/non offset pods. The anglewinder pod you need is SICH61 Evo6, 0.0 offset, if that is the way you want to go with the set up with stock wheels, or SICH60 0.5mm offset but you will need bigger wheels of fatter tyres - due to the offset.
BUT - don't forget anglewinder uses a different type of motor, so I would go with sidewinder and you can use the same motor.
I set mine up it up sidewinder and it works a treat, with 0.5mm offset pod(SICH63, Evo 6), and 16.5mm wheels front and rear, low pro zero grip front and yellow dogs rear tyres, I think they are the 1403 size, I always loose track of the sizes, lol, as they aren't marked, and I use/have most of the sizes in the range.
You could use the stock 15mm wheels with fatter tyres, but for some reason it just didn't work.
This car was is tricky to get right, but then I am running it at home on Scalextric track with magnet. 10/34 gearing, independent hollow front axle.
Oh and forgot to say it has the slot.it spring suspension with medium springs and all brass screws on the car, but I won't go into the screw set-up as I'll be here all day, unless you want to know.
I spent a good few weeks experimenting with setting up this car, until I was happy. Next I'm gonna swap out the orange motor and try a Teal one, which I think will be better suited for this car.
And yes you can use suspension with in-line set-up, just use 2 screws and springs, BUT - you need some nuts on the top and I had to use the ones from the Slotting Plus suspension screws, although Slot.it have now brought out their own version of the nut and also the new in-line suspension kit.