Let's stick with just suspension forks for now. Someone school me on bicycle geometry....specifically, head tube angle and the way it affects the ride.

My current (80mm) fork has a 430mm axle to crown measurement.
If my new fork has a 480mm axle to crown measurement, how does that affect the handling?

I would assume, that would change the headtube angle and make it less aggressive (say from 72 degrees to 70 degrees), when that happens, I'm assuming the bike won't be as "snappy"? The steering would be a little more sluggish? And riding hands free would be a lot easier? And ride height would increase (in the front?)

Would my assumptions be correct?