Hi everyone. I have a 2012 Pantera II and just ordered a Humminbird Helix 12 Mega SI Chirp G2. I am leaning towards a Ram mount but most I see advertised have the short arm. Is that adequate or do I need a longer arm to mount it to the gunnel, outboard of my drivers console. Feel free to recommend a different mounting system or location. Also, I have broken 3 transom mounted transducers since I bought the boat (I fish Lake Fork). Can anyone recommend a shield or other way to protect the transducer from stumps without diminishing its effectiveness? Thanks in advance.