Conclusion: It doesn't suit my application which is a fairly heavy three axle cargo trailer. The problem is that when fully loaded the trailer sits too low to be used (the product is quite large) and on the triple the second axle doesn't start. I rated it high because I think it is a very high quality product and if you have a high clearance trailer like a utility trailer or enclosed snowmobile trailer it would be perfect. For my application I only have to use a bottle jack.