Should you consider switching to another lender and give up your tracker altogether?
I don't think so. You can have a tracker at ECB + 2% for 10 years and the balance fixed at 2.3% for two years.
The best alternative is to fix with Bank of Ireland at 3% and stay with them for 5 years to get 3% cash back. This works out at 2.4% ( 3% over 5 years = 0.6% a year.)
So the porting option remains better.
But it's getting closer.
If, for example, you want to trade up and Ulster Bank won't give you a big enough mortgage, but Bank of Ireland will, then don't worry about losing your tracker.
Brendan