So I'm thining of sizing down my wheels from 54 to 53. I know, it is 1mm. But what did you notice when you sized down in wheels? Does it pop faster being 1mm lower?
I mainly ride curbs and mini, basic flat and grinds.
It comes down to a few things, but to ask:
How long do your wheels usually last you?
Do you skate them from new down to a certain size every time and then put new ones on or at what point do you swap out wheels usually?
Are you going down to the same shape of wheel, or a different shape too?
For Spitfire, they get thinner as they get smaller, so it will be a little smaller overall going down a bit like that, but more than anything, a smaller tech type of wheel will not last as long as a bigger more chunky wheel, but you can maybe do a bit more on a smaller wheel right from go, compared to a bigger wheel you have to wear down and get used to again, if you do wear your wheels down a lot before swapping them out.
To have the luxury of getting bigger wheels, putting them on one setup for some things then having smaller or more worn down wheels on another setup is something that not everyone can afford or even wants, but this works well enough if you are into that sort of thing.
The other side of it is getting wheels that are pretty much exactly as you want, then swapping them out once they wear down a mm or two, so you always have pretty much the same size everything and it is way less to get used to every time you set up a new board, new wheels or whatever.
That is the usual pro setup sort of thing, but it can be a bit more expensive overall, especially if you go through wheels quite quickly like some people do.