While Gateron Milky Yellows are inexpensive linear switches they are certainly not bad linear switches. Here are specs published on the Gateron web site:-- Stem: POM-- Top Housing: Nylon , Milky-- Bottom Housing: Nylon , Milky-- Spring: Spring steel-- Pins：5-Pin-- Pre-lubed: No-- Operation: 50±15 gf-- Pre-travel: 2.0±0.6 mm-- Total travel: 4.0mmThe Milky Yellows are 5-pin switches. The 2 extra pins must be clipped to fit into a 3-pin PC board. Personally, if I had a 3-pin PCB I would probably just order 3-pin switches instead.I'm a bit of a heavy typist and generally use Gateron Oil Kings (55gf activation) or Gateron Box Black Inks (60gf activation) in my daily driver. The Milky Yellows are advertised to have a 50gf +/- 15gf activation force. The +/- 15gf variance is a rather wide tolerance – shared by my Box Black Inks – though the Oil Kings publish only a +/- 5gf variance.Milky Yellows have a "normal" length stem pole and are not considered long pole switches. They have a full 4mm travel. In contrast, the Box Black Inks have a longer stem pole and maximum travel distance is shorter.I first installed the stock Milky Yellows onto my Keychron Q1 Pro. As I had only a 35-switch pack, I used them on the alphas, keycaps with stabilizers and some modifiers before I ran out of switches.The Milky Yellows I ordered are not factory lubed. Playing with one switch by my ear I can hear a bit of scratching but not spring ping unless I flick the stem up, in which case the ping is very obvious. This doesn't happen with the Box Black Ink, for example. When installed in my keyboard in stock form, the typing experience is smooth enough but I hear an annoying amount of spring ping, which is definitely not good. It seems as I hit a key the reverberation from the plate affects the springs in the other switches such that the spring ping comes from many switches and not just the switch I am depressing.I removed the switches and manually lubed the pack of 35 Milky Yellows with Krytox 205g0 lube on the stem and housing. I also lubed the springs with Krytox 105 by adding drops of lube to the batch of springs in a baggie and shaking them for a while. With lube applied the spring ping has disappeared as did the scratchiness I heard up close. Installed on my keyboard the lubed switches feel even smoother and spring ping is eliminated! The bottom out sound is ever so slightly lower and softer.On my keyboard, the lubed Milky Yellows have a "medium" pitched bottom out sound. Compared to the other two switches, the Milky Yellows have a clearly higher pitch so I wouldn't consider the Yellows a "thoccy" switch. The Box Black Inks in particular have a low bottom-out pitch and are definitely "thoccier" sounding in relation.In use, the Milky Yellows are demonstrably lighter than the Oil Kings and Box Black Inks, as expected. However, they are not so light that I don't like using them but they are definitely not my preference weight-wise. I believe I will install these on a different keyboard that I use occasionally or perhaps in my standalone number pad.The Milky Yellow bottom housing has 4 small holes on the bottom surface and the top housing a small cutout that allows backlight LEDs to shine through. The cutout isn't quite as large as that on the Box Black Inks but does allow ample light to pass. Comparatively, the Oil Kings have no cutout at all, so they actually block backlighting.Overall the Milky Yellows are decent switches, especially for their low retail price. On my keyboard they definitely need to be lubed to shine though, and that takes time and effort. They aren't for folks who want super light switches and they are heavy enough that someone like me who likes heavier switches can still appreciate them.