Hydraulic cam for slant

So I currently do not own anything with a slant in it but I have had a half ton pickup with one and my Valiant used to have one. I read the slant section because I really enjoy the content. So I see lots of cam threads but have not seen one about hydraulic cams. Anyone running one in a car or truck and care to share specs? Share why they stuck with the hydraulic over mechanical? Thanks.