As far as the registration process goes, you never know. I am originally from CA, and the system they have there is far better (registration-wise) than here. Until 2014 only handguns are registered, and that is at the point-of-sale. Long arms will likely be similar once the new registration requirement goes into affect. Everything is sent electronically to Sacramento, and there is no paperwork held by the owner. The state DOJ trusts the FFL, after all so does the Federal government.
The simple solution here in Hawaii (while maintaining the asinine registration requirement), is for the HPD workers to simply mail the registration paperwork to the owner after they receive the paperwork from the FFL. The FFL requires that information per the 1968 Gun Control Act, so how many layers of duplicity do we need? No visits to HPD unless filling out/picking up a permit (which is safer for HPD on several counts), no headaches, and takes advantage of the Federal requirements already in place. And it would SAVE MONEY!!!!!!
If California can do it with its union-backed liberal paradise mentality, why can't Hawaii?