I dunno what you mean.....
I'm impressed by people who can really detail HO models well... after doing O Scale for a few years, HO seems so tiny..!!!
However needs must, and I've been getting back into HO recently, but I'm a bit ambivalent about detailing models to within an inch of their lives... it tends to make 'em a bit fragile, I think, especially with today's plastic handrails (yuk!!)... then again having an enthusiastic but not too gentle 8-year-old accomplice doesn't help, either, so although I'm doing these old Athearn Blue Box SW1500s as Progressive Rail locos, I'm not adding much extra to them beyond the very obvious such as all-weather windows, an A/C unit on #37, and spark arrestors (scratchbuilt, slightly too big and not for Purists!!)...
.. oh, and don't even ask about the 'ditch lights'....