Wingpad kindly sent me some blue Alps switches. I tried swapping out the slider, spring, and click leaf from a couple of the Matias Click switches in a KBP V60MTS-C with the corresponding parts from the blue Alps switches. The result is something that sounds and feels more like a blue Alps than a Matias Click switch. The transplantation also greatly attenuates the noise you get from lightly brushing the keycaps with your fingertips. Thus, the transplant reduces the rattle of a V60MTS-C board.
I am not sure if this mod would be worth using up 61 genuine blue Alps switches to do, but for those who prefer not to desolder and resolder switches, this would be a relatively easy and potentially worthwhile mod for a V60.
Perhaps something almost as good could be achieved by using parts from a somewhat more common Alps switch. Orange Alps perhaps? With or without click-modding the tactile leaves?
EDIT: I tried the transplant with orange Alps. I discovered that the orange slider and return spring work in a Matias Click housing, but the orange tactile leaf does not fit inside a Matias Click housing. I tried clipping the top tabs on the orange tactile leaf (click mod) -- this enabled the leaf to slide into the Matias Click housing almost all the way, but there was still some overhang, so I abandoned this attempt. There is some improvement in the Matias Click switch from transplanting only the slider and return spring from an orange switch, but not as much as from transplanting the slider, return spring, and click leaf from a blue switch.
After clipping all 4 tabs from the orange tactile leaf, I was able to slide the leaf all the way into the Matias housing. With the completely clipped orange tactile leaf, return spring, and slider, the modded Matias switch had an attenuated click and less tactility than it did with the orange slider, return spring, and Matias click leaf.
Next, I put the slider, return spring, and click leaf from a white Alps switch into a Matias Click switch on the V60. There is a slight difference in sound or feel between the Matias/white versus the Matias/blue. Either of these is better than straight Matias or Matias/orange.
My subjective ranking of hybrids in the V60MTS-C:
Matias/Blue ~> Matias/White > Matias/Orange > Matias/OrangeClip > Matias/Orange+Matias Spring ~> Matias
The Matias return spring is longer than the return spring in Blue, Orange, or White Alps switches.
Another discovery: Keycaps from an IBM 5140 have a somewhat loose fit on blue Alps sliders. These caps are fine on Matias Quiet, Matias Click, white Alps, orange Alps, and brown Alps.
