I'm just glad you had a decent question for once....

... most of the time it's the MC's fault they have a ****load of adlibs... bc the engineer doing the tracking does whatever the client wants... seeing as it's the clients money... Tons of adlibs and stacks in Hip Hop usually means the Artist sucks whether it's their voice, content, etc etc etc... sounds like you need someone to produce you... help you get that great performance... and leave the mixing to a qualified individual... thats why it's nice to have a team of individuals who are trying to achieve the same thing...
Too many adlibs are like watching what is supposed to be a Freestyle and there is one wannabee rapper in the click spitting word for word what the kid Freestyling is saying... it's ****in annoying...
Before you go saying I didn't help... just remember... when you hear mixtapes the signal chains aren't usually special... it's the lyrics and delivery... dont try and shove 20 punds of **** in a ziplock bag... and dont try and shove a bunch rhymes, wit different cadences into a 3 minute song if it's not necessary... if it doesn't sound right in the first place I dont see how repeating a stackings gonna make it seem any better...
All in all... it sounds like you finally listened to one of your songs for the first time... and are hearing what we've been hearing you post all along... I swore back in the past I said something about it... glad you finally pinpointed the problem... Plug ins and mic pre's cant fix bad performances... being original helps too...