I got 07-08 Salomon boot. Malamute is the stiffest one.
In fact, the hande doesn't stay very well, it falls off the boot whet you walking in deep powder(once you get far away and cant ride, but walk). It happen one time a day, or about.
Lacing system... well, i got a flatfoot, so i lace off my boots after a cople of rides. After a small break, when i lace it up again, and if i lace 'em correctly(tight enough, but no overtigthening) i can ride all the day. May be i'd tighen up the higher part of boot(last clip) for extra hold after a dinner.
You can think that the problem still exsist, but remember that i use 08 model, and i prefer quite tight fit, on a stiffest model. Personally i think, it'd be way better on f22-f24 boot and you'd be happy with latest one.