I haven't used them personally, but according to Matias all three of their switches actuate at 2.2mm and bottom out at 3.5mm. http://matias.ca/switches/click/

I haven't used them personally, but according to Matias all three of their switches actuate at 2.2mm and bottom out at 3.5mm. http://matias.ca/switches/click/ http://matias.ca/switches/click/ http://matias.ca/switches/quiet/ http://matias.ca/switches/quiet/ http://matias.ca/switches/linear/ http://matias.ca/switches/linear/