Re: "Should I just use steam to change the crease or can I lightly spray the hat with distilled water?"
I do both. The water softens the felt & the steam/heat tightens the felt fibers & softens the lacquer for shaping.
I put a dishtowel in the crown so as to avoid getting the liner wet & water staining it. It is also important to wet the hat uniformly so as to avoid water marks. Think shower/spray bottle, not faucet. The felt is most pliable - like clay - when it is 1/2 dry. Play with it, you'll see what I mean.
I don't usually bother with distilled water, unless it is requested. The rain that falls on the hat is not distilled.
I do both. The water softens the felt & the steam/heat tightens the felt fibers & softens the lacquer for shaping.
I put a dishtowel in the crown so as to avoid getting the liner wet & water staining it. It is also important to wet the hat uniformly so as to avoid water marks. Think shower/spray bottle, not faucet. The felt is most pliable - like clay - when it is 1/2 dry. Play with it, you'll see what I mean.
I don't usually bother with distilled water, unless it is requested. The rain that falls on the hat is not distilled.