7.5 to 8 in regular shoes, thin feet, what about in skates?

I heard your size is around 1.5 sizes down in figure skates so I just want some rough information/advice to go off of when I go for measurements when I get fitted. I think one time when I skated recreationally I was given a size 6 or 6.5 and those fit nicely from heel to toe but I also have thinner feet. So I guess this is more of a size and boot question since I’m planning on getting Riedells 133s. So is anyone familiar with their sizing that could give a general recommendation or some advice??