Lloyd, Great Job. Everything I've read indicates that learning the kipping pull-ups will benefit your dead-hang pull-up numbers, but not vice versa, i.e. better to use the kip than not. As you progress you may decide to add dead hang pull-up workouts eventually adding weight once or twice a week, after you do simplefit, you know, depending on how you feel and your ability to recover, experiment and all that jazz.
I think there's a "spring" type action when you lower and quickly rebound back into a pull-up versus if you go full dead-hang, that's why it seems a bit easier.
And remember, the kip may make doing the pull-up easier, but it also allows you to do more work, which is probably the reason you're working out, unless you're planning to enter a pull-up competition.