Brian's lifters have pressurized oil to the roller which helps dramatically with wearing out. Otherwise unless the cam is a street roller (relatively mild in terms of ramps) the lifters will need to be rebuilt every few years to be safe.
I guess i would classify it as a street roller. I .600 lift and ......................280-290 duration (advertised).........i real have no clue what i need or want really. will have to see were i end up on these head, whether it will go in my 340 or stroked to 410.......
A hyd roller would work for what i need.......just really like the idea of a drop in aka "no mod" roller lifter.
