This isn't really a case of personalization, but I've started sharpening my Vantage freehand. I always sharpened my Vantage with a Lansky knockoff; the guided system made it easy to hold a consistent angle and the diamond stones made quick work of the S30V. However, I was always frustrated at the way the clamp would occasionally slip, and the fact I had to tape the spine of the blade to prevent the clamp from marring the blade's surface, and the way the finger guard prevented the stones from reaching the actual heel of the blade edge, and the small size of the diamond stones, and the way I was so dependent on the guides, and...well, you get the idea. So, over a period of time, I taught myself how to sharpen freehand.
Nowadays, my sharpening gear consists of two stones, sandpaper, and a strop. If it's necessary (which is very rare), I start off with my dad's two dollar aluminum oxide combination stone...a terrible stone IMO but I reserve it for reprofiling edges or to quickly establish a rough apex on extremely dull knives. I then move to a King 1000 stone and then progressively work through 1000, 1500, and 2000 grit sandpaper. I finish up with a strop loaded with Mother's Mag (or, sometimes, Blue Magic). The edges may not be perfect mirrors, but they're shiny and sharp enough for me at this point
One lesson I learned the hard way is how chippy the S30V on my Vantage is if the angle is brought too low. I tried reprofiling and sharpening with the knife practically flat on the stone, and the edge developed massive chips just from sharpening...I lost a lot of blade stock working out those chips but it was worth the learning experience. I now try to keep the Vantage around 30 degrees inclusive. I sharpen with the back of the blade raised about one to one and a half spine widths above the stone. The blade of the Vantage is approximately one inch wide and 1/8 inch thick. Using some basic trigonometry (1 inch * sin(15 degrees)), the center of the spine should be raised about one quarter of an inch, so based on visual inspection there should be about one and a half spine widths worth of empty space between the back of the blade and the stone for an edge that's 15 degrees per side, or 30 degrees inclusive. My freehanded angles may not be perfect, but they're certainly good enough for me.
Just for kicks, while I was eating an apple recently I tried slicing it as thin as I could. I got a slice thin enough to read through, which is probably nothing new to knife knuts but was a first for me and incredibly fun to do. I tried taking a picture mid-slice, but each time I tried setting up the pose I wanted, the weight of the knife would finish the cut. I ended up keeping the pose and using a thicker slice so the knife wouldn't just fall right through for the pictures: