on my XXX4, i use s crt.5 high downforce wing. i have zero issues with it and actually now turn marshalls are not destroying my wing like they were previously.
Bulldawg R/C Batteries and Products
Nimh and Lipo Batteries and accessories
Team Driver for: Proline, Team Epic/Trinity, Hex Crew, Bulldawg R/C, Speed Demon Hobbies ~~~~TEAM CRUNCHY~~~~