mach 3 /aspire rounding toolpath

[GreggM]

I read the previous post about (the workaround for this, is to use a very small value (eg. 0.001) in the "Rotation Offset Radius" DRO when zero is the correct and desired value. Small enough to have no measurable effect on feedrate, but not zero.) which did make the A axis spin fast in the test run.... being happy with that one liner I wanted to make a rounding tool path

I set my gadget to
wrap X along Y
3.5" square stock
3" cylinder
rounding tool path
Z center of stock
mach x2a inch ATC
......................Problem.................
raster along y makes the correct Y0 to Y2.00 movement BUT upon each A rotation it should be A4 A8 A12 it goes to A356 A352 A3348 (I'm not at my shop and didn't get to record the DRO before I left) degrees to step over 40% for the .25 end mill
( Rounding Tool path )
( for Mach2/3 from Vectric )
( Material Size)
( X= 10.000, Z= 0.750)
( Diameter = 3.0000 Inches)
( X Values are wrapped around the Y axis )
( X Values are output as A )
N130 G00G20G17G90G40G49G80
N140 G70G91.1
N150 T1M06
N160 (Tool: End Mill {0.25 inch})
N170 G00G43Z3.4249H1
N180 S12000M03
N190 G59 ((( here is where I manually insert my G59 offset)))
N200()
N210 G94
N220 Y0.0000 A0.0000 Z3.4249 F100.0
N230 G00 A100.9859 Y-2.0000 Z3.4249
N240 G1 A100.9859 Y-2.0000 Z1.7500 F30.0
N250 G1 A100.9859 Y0.0000 Z1.7500 F100.0
N260 G1 A104.3193 Y0.0000 Z1.7500
N270 G1 A104.3193 Y-2.0000 Z1.7500
N280 G1 A107.6526 Y-2.0000 Z1.7500

ALSO, I use g54 for x0 y0 z0 for 2 d work, and have g59 to get the spindle over to the rotary(A axis) Is this the only way to or can I use the material setup offsets to get the same results
PS how do i update my mach 3 to the latest version

Thanks Vectric/Mach3 Gurus