It seems that the sound and feel of keyboards with Matias and various Alps switches can vary depending in part on the keycaps. I've been experimenting with keycaps sourced from various boards with Alps-mount keycaps for my V60 Matias Quiet Click Mini keyboard.I was able to replace all the mods except the spacebar by using mods from a Dell AT101W. I like the convex mods on the bottom row -- they match the curvature of the spacebar. The stabilizers work quite well, and all the stabilized keys -- including the spacebar -- have a crisp and even response with no rattle.I've tried several sets of alpha keys. First, I had a set from a Data General 6311. This is made by Acer, and the Acer 6311 reportedly has dye-sub PBT keycaps. The ones from the Data General 6311 had nice printing, but if the caps were PBT, they had nevertheless yellowed considerably with age. I didn't like the yellowed look, so I replaced these with a whiter set from an Ortek MCK-84. However, the Ortek caps caused some of the keys to bind. This binding problem has been attributed to some keycaps having stems that are too large for the switch sliders, causing the sliders to expand and bind in the switch housing:So, I took the Ortek caps off and replaced them with a set of double-shots from a Suntouch Jr. These do not bind, and they look great. However, they have the clammy feel of ABS, so I am still looking for some dye-sub PBT caps.So far, I like my V60 Matias Quiet Click better than any Cherry mx board I have tried. I have a V60 Matias Click keyboard on order. After it arrives and I find keycaps for it, I may do a comparative review.