After few problems I decided to come back with a new project.
Using twisted B&M type I built a flying coaster trying to maintain all the lateral in acceptable parameters!Consider that many vertical g's are red:nothing possible to do with them[;)].
Layout is completed and here some photos:
The station
the first drop
fly to lie
half pretzel up
flying flatspin
half pretzel down
banked lie to fly
Remember this is absolutely a fantasy ride built just for fun even if I put inside it attentions like a real ride...