High output MC cartridges

LOMC not always have bigger mass. In case of cantileverless or front coil design this mass can be very low either. As there is no cantilever - in theory it's faster than standard MI (should be the same transient response as Decca).

HOMC if to look only into mass yes it's worse than MI. 

although for my ears it's comparable to MI. 

I think there is only one reason people buying HOMC cartridges, the reason is the phono stage that can’t handle LOMC.

But if they got a decent MM phono stage to handle MI then a decent SUT (or headamp) will help to handle some decent LOMC with the same phono stage.

Instead of any HOMC i would recommend to try some killer vintage MM or MI with superb cantilevers and best stylus profile.

The only time I’ve ever purchased a HOMC was because I got a really good deal on it. It is my 2nd best cartridge, a Van Den Hul MC Two Special.  Maybe my best.  The fact that it's a HOMC doesn't necessarily make it a bad cartridge. 

i have the Blackbird - very happy with it - using all tubes, VPI Prime and 8" full range open baffle DIY speakers from Decware. 

I purchased the blackbird HO as a package with project 9.1 turntable.  I liked the way it sounds but after a while  it became fuzzy sounding.  I checked out the stylus and thought it might be dust in the generator.  Long story short I blew away the fragile wires with a gentle puff of compressed air. My biggest audio blunder. Soundsmith could not or would not repair it.  Andy in Washington did and it is now a back up.  
Beware the Sumiko open cartridges.  I also run a Dynavector LOMC and I like it.