I can buy the MBRP locally (Edmonton) but would order the HPS if it's a better can. I've read that the stock suitcase works best at altitude when were down on power .Maybe thats where the increases or decreases show up the most.I've also followed the Thing can from it's early testing stages but have no experience with any of them.Specialty sells there X can,It's ceramic coated and might keep temps down.I picked up my new sled friday (163X) , went to Valemont and the recoil crapped out at allen creek.Bro on his Dragon couldn't stop laughin.Anyways just looking loose some weight and get a little attitude.