For those of you that have transducers on your boat, are they internal (inside your hull) or are they exturnal (mounted on the out side of the hull).  The transducers that I have now are internal and I got a new fish finder the other day and was wondering which way that you all had them and liked the best.  The guy as Bass Pro said that he thought that I could call Eagle and I could send them my exturnal transducer and they would send me an internal/through hole transducer.  I also herd that the ones mounted externally picked up better and typically did a better job.  Whats your opinion?  Thanks!

I assume that you are talking about the skimmer and the puck transducers. The skimmer can be mounted on the inside as well as the outside (on the transom or the tmotor)

I have one skimmer and 1 puck mounted inside my boat and a puck on the tmotor.  I wouldn't ever want a skimmer mounted on the outside of my transom.

Yes, they will send you a puck that you can bond into the hull, but you will most likely pay for it.

Shooting through the hull does reduce sensitivity a little, but it doesn't get knocked out of addjustment.  I have them shooting though the hull and on the transome.  Other than it getting knocked around from time to time, I actually prefer the transome mounted skimmers.  My skimmer reads just fine to about 70 mph and then it starts getting flakey because where it's mounted starts getting lifted out of the water.

You can also run into problems shoothing through the hull.  I thas to be solid glass between the Xducer and the water, If small airbubbles happen to be in the glass it can cause problems.

Oh, also, a skimmer can be epoxied in to shoot though the hull, doesn't have to be the puck.

I would never mount a transducer in the hull period