Root [Sprint] Flashing a Deodexed Stock ROM

[AlwaysAngry]

i want to install the multi-window mod for all apps but i apparently need a "deodexed" rom to do it... my question is: if i flash this file (Recovery-Flashable L900VPALJC Firmware Rooted for Sprint Galaxy Note 2! [Stock ROM] | Galaxy Note 2 Root!), will it wipe all my stuff or is it just like an update and leaves everything else alone?

 

[AlwaysAngry]

i'm a jerk. i should have read the comments on the page i linked; the answer was there all along