Why anyone would use a philps screw is beyond me,Oh right you yanks dont have Robertson screws down there!
Fortunately I can use a square drive screw for just about any application,except drywall screws......
Back to the topic,I have most my controlers screwed down but used velcro for my ch throttle,it hasnt moved but isnt quite as secure as the rest of my controllers. It's not enough though for me to go to the trouble of fastening down with screws!
YMMV.
