(Slowdown observed by ArcEye as posted here:)
(http://www.linuxcnc.org/index.php/english/forum/10-advanced-configuration/27368-new-trajectory-planner-testersprograms-wanted?start=30#42777)
G40 G90
G20 G17
G40 G8
F3000
G00  X0.7500  Y0.7700
G01 Z-0.0300
G03  X0.7000 Y0.7200 I0.0000 J-0.0500
X0.7500 Y0.6700 I0.0500 J0.0000
X0.8300 Y0.7500 I0.0000 J0.0800
X0.7500 Y0.8300 I-0.0800 J0.0000
X0.6400 Y0.7200 I0.0000 J-0.1100
X0.7500 Y0.6100 I0.1100 J0.0000
X0.8900 Y0.7500 I0.0000 J0.1400
X0.7500 Y0.8900 I-0.1400 J0.0000
X0.5800 Y0.7200 I0.0000 J-0.1700
X0.7500 Y0.5500 I0.1700 J0.0000
X0.9500 Y0.7500 I0.0000 J0.2000
X0.7500 Y0.9500 I-0.2000 J0.0000
X0.5200 Y0.7200 I0.0000 J-0.2300
X0.7500 Y0.4900 I0.2300 J0.0000
X1.0100 Y0.7500 I0.0000 J0.2600
X0.7500 Y1.0100 I-0.2600 J0.0000
X0.4600 Y0.7200 I0.0000 J-0.2900
X0.7500 Y0.4300 I0.2900 J0.0000
X1.0700 Y0.7500 I0.0000 J0.3200
X0.7500 Y1.0700 I-0.3200 J0.0000
X0.4000 Y0.7200 I0.0000 J-0.3500
X0.7500 Y0.3700 I0.3500 J0.0000
X1.1300 Y0.7500 I0.0000 J0.3800
X0.7500 Y1.1300 I-0.3800 J0.0000
X0.3400 Y0.7200 I0.0000 J-0.4100
X0.7500 Y0.3100 I0.4100 J0.0000
X1.1900 Y0.7500 I0.0000 J0.4400
X0.7500 Y1.1900 I-0.4400 J0.0000
X0.3100 Y0.7500 I0.0000 J-0.4400
X0.7362 Y0.3102 I0.4400 J0.0000
G00 Z0.1500
G00 X0.0 Y0.0
M2