I do agree American Steel is the best. But Lippert gets a lot of bashing, we must remember that Lippert does build their suspension components from the spec's that the manufactors request. There may be a problem with the Steel that is being used (China buys lots of US steel?), I don't have a clue as to what type of Steel thats being used. All our 5th wheels have been heavy three of them had 7,000 lbs axles and the Mobile Suites has 8,000 lb axles. And I have the Trailair center point suspension now and I do like the system. That being said I haven't had a Mor/Ryde IS suspension, I did have the rubber suspension. I have seen the Mor/Ryde IS suspension being installed and it is the best upgrade I think you can get and not use the spring type suspension. I do know someone who had a major failure in Canada on a trip there, the spring hanger's collasped. The repairs done increased the spring hangers and other areas. There are after market shops who can make springs for your 5th wheel. But I would be very careful in how heavy (Strong) you have built. Springs are designed to absorb road shock, and if it to strong the shock will go someplace thru out the 5th wheel. I haven't had any suspension problems. I do hope everyone gets their problems taken care of. Good Luck. GBY.....