Looking to put sealer in the rear tires of the new Lazer. Was leaning toward "Slime" but did some checking and it says that Amerseal is a lifetime deal, but slime should be removed from the tire after two years to keep the rim from rusting. Also "Amerseal" seals the sidewall and rim while Slime only covers the bottom of the tire. Need some input on this subject and where is a good place to order "Amerseal" from.The amerseal website says you can order direct from them but gives no price. Anybody order from them?