I use about a ¼" of clear liquid hand soap (Costco) in the bottom of a garden-style spray bottle and the rest filled with water. I would describe it a slippery, not slimy. I have seen commercial suit lubes with a higher viscosity that are definitely slimy, thus the suit-snot moniker.
My freediving suit is skin-in/Nylon-out and split cell (incorrectly referred to as open cell). The surface has such high friction that I cant even get a wide suit hanger to go in the jacket so I hang it inside-out/Nylon-in. It is a typical freediving suit cut; 7mm farmer with no fastener at the shoulders, no zippers on limbs, no-zip pull-over jacket with beavertail, and attached hood. It slides on easier than my clothes.
The arms and legs of the suit slides and rotates more than you are used to, but you get a feeling for how much spray to use to limit it. Wish I had figured this out when I got my first skin-2 suit in 1962. I find it is a bad idea to spray your booties though because your foot slides too much.
The best part of all is you dont care if the suit dries before putting it on. :thumbs_up: