Mix LGR and Text?

["Bryan Parkoff" <nospam@nospam.com>]

    You may know that low resolution (LGR) has 4 colored text line in the 
bottom.  I have an ability to cause LGR's colored blocks from line 1 through 
line 12 and colored text from line 13 through line 24 on any Apple II+ or 
Apple //e or Apple IIgs.  You may be surprised when it appears to be 
impossible.
    I have created a small routine with timed loop by switching C051 and 
C050 back and forth at exact 17030 cycles.  After it reaches 17030 cycles, 
it loops back to the beginning of the routine.  The LGR's colored blocks and 
colored text can be scrolled up or down at fast speed or slow speed.  It 
looks very smooth.
    Some emulator projects like AppleWin do not do any good, but KEGS is 
almost 90% OK because of flicker.  It has to be free flicker with smooth.  I 
would try to make it smoother.
    Have you done with this experiment before?

Bryan Parkoff