Here we go again - you'll never actually answer questions, will you? You just try to throw them back with your usual arrogance. It won't work this time.

So now 'you' challenge anyone to show that the SP31 is the best option. In case you've forgotten I've already challenged you to do a detailed comparison of the AM solution versus the SP30/31 (which, of course you're incapable of doing so because you don't know how), so either provide it or shut up. And don't cheat by 'overclocking' - a device has a specification, overclocking it  means going above that specification so there is no guarantee it'll work properly.