Here is 2 that I had customs done, Ariel, Jayce, and co from Wambabes, I have them doing it for 5 years, April Showers, she has been doing it for a couple of years, and Wetlook Elena did a couple of customs, she did excellent. I use to get Waterlogged Productions, Liquid Ladies, and Interwet when they use to do customs, also REG productions Girls next door, they did a lot of customs, when Wetmar (Margareth) was doing it, I had her do a few customs.
I've done a couple customs through here, but mostly I've gotten NEW models to do wet and messy things using Manyvids.
Since my fetish also involves bodily fluids sometimes too, alot of that isn't allowed here. I had an *okay* experience with Ariel. The videos were pretty decent, but the timeline was a little skewed (or possibly just bad communication).
I've asked about customs on here, but only to a couple models. I have other 'regular' models that I use on MV (or now outside of MV since they trust me and I've bought enough from them).
I've had a good experience with a custom from WamInStyle, ufa217 on this site. They were very responsive and dedicated to delivering a video to a very high standard to any specification. There is no challenge too great for them I believe. They have some of the most creative videos in their repertoire when it comes to pure wetlook imo.