If you love your 28, you are going to be awestruck by the 34 or its sister the 35-3! The SJ 28 rates on the Base PHRF (folding prop, 150, spinnaker) at 186. The 34 rates at 123. The 34 will smoke the 28. The motion in a seaway is easy and the hull shape does not pound. This is important in our rather boisterous Straights that I sail on. Think 25-30kn with opposing tide of up to 6kn. On my first sail after purchase, I poked my nose out of Victoria BC and found 28-35kn winds on an opposing tide against 6-7 foot seas. Not going was a problem as our import papers said we hade to import on that day or resubmit the application. With two reefs and a 130 hard on the wind, she did 6.9-7.2kn. The SJ was lucky to do 3.5 in the same conditions.
The light air performance of all the large Ericsons is awesome. No one in my Club wants to attempt to match the 34 in real light air.
If you buy the 34, you are going to love it!
As far as problems go, my boat was in excellent shape sailing wise with good sails (main, 130, 70, two symmetrical chutes). The engine compartment was a disaster with wiring by an over caffeinated, hyperactive spider. I'm good at mechanicals so I bought anyway based on everything being good. Three engine electrical failures later, I threw away the electrical system and rewired to my own plan. No more failures in the last 5 years. The electricals on any 80's or 90's boat is going to be kind of mickey mouse anyway. If you buy, I have a thread on rewiring Terra Nova.
If you want to continue this conservation, we can move it to a private thread or contact me on my email
rwm91@hotmail.com.