Replying to Booster Straps and Rossi Blasts***

Alright so my boots are a little loose towards the top and it's been giving me some nasty shin bang. i cant even lean back for a butter without cringing. I was wondering if booster straps will help a lot and there worth the $30. im really ready to try anything. The other question i have is if anyone has booster straps with a Rossignol Blast boot. I know you have to take off the old strap and i was just wondering how much of a hassle it is and if it works good. How many have the straps and love em? Can lean on those tips all day?