I knocked out all four on my america...I loved the 3 out but was forced to knock the 4th out becuase I found a crack in my 4th baffle after removing the 3rd. But 3 gone sounds great! perfect I must say...its deep...sounds like it should....easy way to do it is this. a 2ft pice of rebar, sharpen the edge of one side. wrap duck tape on the other end so u dont hurt ur hand, and use a heavy mallet. the baffles are tack welded in...so look down with a flash light and place the sharp end of the rebar in the corner bang away and just move around the circle...dont bother with the holesaws...
