Are my leaf springs shot ?

[David Heine]

My leaf springs on my trailer have no curve to them when my boat is on my trailer. They are basically flat, and this is with a normal load. Is this normal ? The trailer is 7 years old. Any ideas ? I was thinking about replacing them.

 

[Rob LaMoy]

Replace or have 1 or 2 added. Does it bottom out when you trailer?