Departure calls are only required for IFR departures and VFR into adjoining D CTA (of which there is none at YPJT) and Class C (which you can't do HJ). 95% of our traffic therefore will have no requirement to make a departure call.
As much as it a large change we will be doing our best to help pilots out as well, not persecute you if you make an error. If it is VMC for the first few days most VFR aircraft won't notice a huge change - other than getting taxi clearances - to their flights. What we say to you will be somewhat different but hopefully not to confusing.