Hello mate. I've not heard of anyone on here with a Uni-Chip. The usual is a SuperChips remap or a Live remap at a dyno centre like Chipped UK in Bromsgrove.
The z22se has a flash ECU where by you don't actually solder on a chip. You just re-write the part of the ECU that deals with fuelling etc.
SuperChips is a generic program that will or should suit all cars and a live remap is a remap produced specifically for your vehicle whilst it is on a dyno which makes the most of your modifications. Live mapping is the better option.