Replying to Full Tilt Classic parts

This is my first season riding full tilt classics, and as a hard-charging skier I want a stiffer tongue flex. I've also been feeling that the boots aren't very snug around my shins, and wanted to fix that. So I have two questions:

1. My tongues have a flex of 6; what flex should I move up to for better control?
2. Can anyone vouch for the full tilt cuff spoiler? Will it give me more snugness around my shin/more control?

Thanks