trying laser hair removal for full arms

I shaved this weekend because there still wasn’t any more shedding (at 3.5 weeks). So I got about 20 percent shedding–3 or 4 small patches on each arm–the first few days of week 2, but nothing after that.

I thought that after shaving, if my hair doesn’t move past a pepperspot-looking phase, that would still be a good sign, because it would mean that no new hair is coming in (as this should be the hair-free period) even if some of the old hair didn’t shed off (like stoppit mentioned happened for her sister). However, 2 days after shaving, the hair is growing back in like normal–the only places that aren’t growing back are the few patches I mentioned that shed a week or so ago. This means that the laser really only worked on those few patches, right?