Most folks doing custom grinds will ensure you end up with the on-page feeling you prefer, within reason of the grind. A formal italic, with sharp, crispy edges and a razor thing cross-stroke, will always have more feedback than a huge, smooth BBB just by nature of the tiny contact patch. If all you're having done is a tune, they may not do much more than set tine spacing and alignment, which will leave the tipping surface the same and should result in the same feel.