Lightroom :: Canon (EOS 50D) Picture Styles In 41

first let me tell you that I'm familiar with LR concepts. I read a lot about RAW processing, color profiles and stuff. It all makes sense to me.
 
That having said... I'm unfortunatly quite unhappy with LR's color reproduction. It seems technically very accurate; unfortunatly -- Canon's own "Standard Picture Style" (so OOC JPEGs) are in most cases much nicer to look at, color-wise. I know it's not me alone having this feeling (just do a quick search).
 
Adobe provides look-alike profiles (.DCP-files) which are supposed to imitate Canon's Picture Styles. Unfortunatly none of these Adobe-profiles comes close (enough, IMHO) - most annoying thing for me is a strange blue/green cast in darker areas, e.g. shadows in daylight conditions are too bright and too blueish.
 
Remember, I'm using a EOS 50D (which probably won't get profile updates any more by Adobe, I suppose...)
 
So here's my question: Can I assume that Adobe already did the best they can to match Canon's Picture Style? ==> stop dreaming about a "better" "canon-50d-standard.dcp"-file. Take it or leave it, stop crying.
 
Or is there a possibility to tweak existing profiles? ==> find out how. Adobe's DCP editor, dcptool, whatever?