I searched for posts for people looking for ecchi manga but they'd always list any kind of ecchi.

what I'm looking for is an ecchi manga where the characters do H things. Don't get me wrong I'm not looking for a hentai manga and it doesn't necessarily have to involve sex.

what I'm not looking for is the kind of ecchi with the cliche panty shots or "oops my boobs are showing!" or a manga where the character is brooding over cheating on his girlfriend.

examples:
kissxsis
nana to kaoru
sundome
my balls

kissxsis and nana to kaoru are the best examples of what I'm looking for except they're too short.

I've already read

HEN
haru yo koi
aiki
sekirei
girl saurus dx
toshiue no hito
futari ecchi
love junkies
girl friends
highschool of the dead
gekkoh
he is my master

Feed your head.

I'd suggest you check our solaris' list (who does more of borderline h)
http://www.mangaupdates.com/groups.html?id=44

also.. since the stuff (i think) you are avoiding are shounen ecchi... here's a list of non shounen/josei/shoujo ecchi in order of rating (leaves seinen & unsorted). That should probably cover most of it... i think.
http://www.mangaupdates.com/series.html?perpage=50&genre=Ecchi&exclude_genre=Josei_Shoujo_Shounen&filter=some_releases&orderby=rating

The Company
[b]Batoto