Long story short, Braid tute from Kevin John, maxscripted by Trebor777, mentioned on MCG FB by Swordslayer....I reinterpreted it with my own eyes and MCG...cos I couldn't understand much maxscript...
Because of lots of twists and turns, I found the best way is to set the BraidGen Interpolation to 0, then use with a Sweep with Banking OFF, then TurboSmooth on top.
Ver 1.01: added Grow options, please see video.