Albin Owners Group

This is our first year with our new (to us) 2002 Albin 31 TE (Love it!). We currently have a transom mounted StructureScan transducer. We are planning a full electronics upgrade this winter. Does any one have any advice related to the transducers I'm considering, things I should pay extra attention to, or any other helpful reccommendations? Our boatyard will do the thru-hull transducer installation (3). I will be installing the MFD,radar and making all of the final connections.
Equipment:

• Simrad NSS12 evo3s (already own it)

• Halo 20+

Transducers:

• 1@ XSONIC Airmar B175HW

• 2@ StructureScan 3D

• 1@ StructureScan 3D Module

I'm comfortable with the electrical, but not with placement or cutting into my hull!