I have a 2013 PA-14....same as the 2014 model, except for the rudder tension boa feature that I added to my 2013.
I also installed the larger rudder to see if it really made any significant improvement.....I can say it did make a small improvement, but "not the big improvement" that adding the sailing rudder to an Outback makes.....that rudder change really improves tracking, especially if you use a down rigger while fishing.
I believe installing the larger rudder on the PA-12 improves the tracking....and the retractable skeg would help too.
One thing I learned 4 years ago, when I owned a Outback, is to the get the "rudder to answer the input", using quick, short flutter strokes on the Mirage drive, will make the rudder quickly answer the input or where you want the hull to go/course direction....this technique works on all Hobie models with the Mirage drive.
Another consideration with the Mirage drive on pre-2015 PA's (V2) is you can "upgrade it" to the "GT" Mirage drive by purchasing the GT sprockets, GT idler pulley and GT drums.....I think it's around $135 for these parts to make the conversion....and you provide the labor.
This year I covered 500 miles fishing in my PA-14 and aside from adding the boa rudder tensioner and larger rudder noted above, I plan to upgrade the Mirage drive to the "GT" by changing out the items listed above....Christmas present from my wife
I don't want to give up use of the aft round hatch, that you lose, due to the retractable skeg occupying this space inside the hull of the 2015 model, because I have my battery mounted inside the hatch....it makes storage and recharging the battery very easy.....So that rules out a 2015 model for me.