By the way, one easy way to see what oscillation looks like is after you get your amp built, hook up a 5K pot or something in place of the feedback resistor. Hook a resistor dummy load across the output speaker terminals, then put your scope probe across the dummy load resistor. Then turn down the feedback pot. Start at 5K and slowly turn it down to less and less resistance. Eventually you will get to a point where the flat line on the scope will just go wild. That's the point where it breaks out into sustained high frequency oscillation.If I were to experiment I suppose I'd need to know what oscillation looks like on the scope (or more accurately, the onset of oscillation) and adjust the values of the FB loop accordingly. Or something like that.
If you run a 1KHz sine wave through the amp at 1 watt output, and do the same test, many times you will see "nodgules" start to appear on the sides of the sine wave, or other oddities that look like puss packs or something attaching themselves to the wave form. That's the onset of high frequency oscillation also.
Other times everything will be fine at high frequency, but when you pulse any random low level signal across the inputs, the output will exhibit a low frequency oscillation of maybe 1 to 10 Hertz. What that looks like on a scope (on the DC probe setting) is a flat line that is up then down then up then down, etc. This is low frequency oscillation.