I beg to differ. Scalex sport has two radii of banked curves (R2 and R3).
They are a different mold that standard curves as they do not lay flat plus both of them are 45 degree curves.
They definitely provide extra speed but the main issue is that here are no banked borders.
Even if you want to use standard borders, there is no support. You have to build your own.
This is what I did with mine: I used corrugated plastic for creating a supporting platform and when foamboard for the borders:


Another picture after I added some walls and sponsors.
