i usually call those a "redue"...but if its just for you personally, then do which ever you feel comfortable with if your not going to scrap it out...but with leather its pretty much whats done, is done...never look right either way...
myself personally, even if its for just me...if people/public may see it...i want it to look clean & purdy, neva know where a sale may come...and thats your example in hand...so i'd completely redue the whole thing...
darryl