These are very good, and informative videos. Great job Mitch! Hopefully Line 6 will improve the cab blocks by adding a second mic and a horizontal adjustment. cap, cap edge, cone, and cone edge should do, but the second mic would be huge. Currently by using two mono cabs in parallel you can get close, but for now IRs provide the best solution. To avoid the preset delay I like to use a clean amp and dirty amp in the same patch, and four mono cabs use too much dsp.