Replying to Full Tilt 6 Flex to Full Tilt 10 Flex Question

hey guys , I’m currently looking into buying some new full tilts, as my 2015 dropkicks are coming to the end of their days. I’m mainly looking into the First Chair 10s (as I know how comfortable my foot is in full tilts 99mm wide shell, so don’t come at me saying try them on in person :)... because Ik they fit me like a glove with my previous 2 pairs of full tilts in that shell.).... I only weigh about 135 but I feel like the 6 flex tongue on my dropkicks were pretty soft . Do you think I should have problems moving to the 10 flex boot since I mainly ski park ? Just lookin for opinions.... + points if you ride a 10 flex boot in park and you let me know how you like them .