"Officially" only the rolling type of acne scars are tethered to the underlying structures but I also recommend suctioning for stubborn boxcar scars that has not improved after about one year of microneedling. It is worth trying.
I do not think applying sugary products to the freshly rolled skin is a good idea. Honey has trace amounts of minerals and vitamins (but sometimes also of pesticides) and other substances but its main content is glucose and fructose. That may be soothing to the intact skin but I would not apply it after rolling. Honey is poison, basically, in a way. The reason sugar has been used for thousands of years to preserve foods (jams, honey etc.) is that it kills bacteria and fungi. Sugars are very, very harmful to our organism, that is why people's legs need to be amputated etc. when they get diabetes that gets out of control. Sugar is so harmful to cells and organs (tissue damage through glycation) that we would die in hours after ingesting it, if it weren't for our insulin glands. I would not rub concentrated sugars into open skin, for lack of knowledge what would happen (but likely, bad things would happen..)
You can already order a dermastamp and the suction pump now because our shipping fees are based on weight so it will not cost you significantly more if you order the needles later.
You do not have to use retinoid products.