johnny boy you might want to stick to giving advice on what is fact. The 7010 and 8010 are combines of the same design. they both have the same cab, self leveling sieves, grain pan, CVT drive, rethreasher, remote sieve adjustment, to name a few. the biggest similarity of the 2388 and a 7010 is the Case IH logo on the side.
The 2 machines in question are pretty much the same above the sieves, but the 7010 has a narrower sieve than the 8010. the 8010 also has bigger horsepower and grain tank. We have been running a 7010 for the last 2 years and have gotten along pretty good, we run a 12 row head on it and it handles it alright. this year we seemed to be maxing the sieves out in the fields that were making over 240bu. at 19-20%