[Bill Bess]

Okay, here's my two cents regarding tow trailers.
Heavy axles are always better than lighter axles. The heavier axles will be equipped with heavy corresponding springs as compared to a lighter axes and lighter springs on a lighter trailer.
Most trailers have shocks or torsion suspension systems, or both, the better quality trailer is money well spent. If your on a tight budget..go get a big Tex tandom, it will do the job. Open trailers can be lighter, ....enclosed go HD and be happy and safe.
Best of luck, Bill