Hello, I am going to buy the garmin striker vivid 7cv fishfinder. I was told to buy the B60 20 degre

Question: Hello, I am going to buy the garmin striker vivid 7cv fishfinder. I was told to buy the B60 20 degree transducer as well. I was reading the highlights of the transducer and it said for boats up to 25ft. I have a 28ft Bertram that stays in the water all season. Can I still use this transducer even though my boat is 28ft long and stays in the water all season. Thanks Mike