No I didn't.
Suit gives bouyancy. Therefore you add weights. So in depth, when the suit loses bouyancy, you become more negative, on the surface you are more bouyant with a suit on.
If I empty my lungs without a suit, I will sink. which makes a good breathup (for me) with no bouy to hold on to kinda dificult - I have to give some propultion when I'm empty to keep my snorkel getting air instead of water.
If I empty my lungs with my 3mm suit and 3kg, I will not sink. So at surface I am more bouyant.
But at depth, this thing changes: not wearing a suit, I have only my lungs that have compressed.
Wearing a suit, I have my lungs and my suit that have comressed, and 3kg of lead. There's a depth in which the 3kg of lead sinks my suit, which doesn't happen at surface. That depth I guess is less than 15meters because when I was diving without a suit, I got negative deeper than I would with my suit.
You can also say that I don't inhale as much air with the suit on, though I'm not sure how much difference that can make.
This can be different for different body types lung sizes and suits, but there's a general rule that works for all: you have more buoyancy change when diving with a suit than without. And more change for a thicker suit.
That's why it's important that freedivng suits will be made from better materials and with a better fit to warm you more, so you could get rid of some mm's, because the bigger the buoyancy change you will have, the more energy you will have to spend fighting it (harder to get down, and harder to go up).
I guess I was in the mood for some writing.
Welcome to DB by the way.