I like to tinker in the garage & don't mind adjusting the lash a few times a year, so that doesn't bother me. I already have a set of adjustable rockers, so there's no issues there. What about engine reliablility?
Just ran a few cams through CamQuest. To no suprise, a smaller solid makes a little more HP and way more torque, what did suprise me was that the peak HP was made lower in the RPM band (5500 w/ the XS274S vs 6000 w/ the XE285HL). Peak Torque and HP falling within 1500 RPM of each other looks pretty good!