Problems with G03, HELP!

Hello Everyone,
I am somewhat new to cnc programming and could really use some expertise to solve this problem. Any help is much appreciated. Im taking over the programming of our cnc machines because the person who use to do it is no longer around so I don't know what kind of mess I inherited.

The machine is a Monarch 150 with a Fanuc series 16 controller. Here's what I got. Keep in mind that this program worked in the past and that the tool offsets were accidently erased.

The program uses a 1" mill to rough out a pocket that is 1.75 wide and 1.12 deep in a mild steel block. Then the program is set up to use a 3/4" HSS mill. Here is the SUB program:

%
O2011(SQUARE HOLE -Y)
(1" MILL)
G40
G91
G1Z-.125
G1G41D7X.3725Y-.8725
G3X.5Y.5R.5
G1Y.75
G3X-.5Y.5R.5
G1X-.75
G3X-.5Y-.5R.5
G1Y-.75
G3X.5Y-.5R.5
G1X.75
G1Y.8725X-.3725
G40G90
M99
%

Cutter D offset is .500 with no other offset for that cutter except for the height. The Over travel occurs at the 4th G03. The cutter then goes back to the center without going to the last position G1Y.8725X-.3725 which leaves stock that I dont want.
I tried to use a 3/4" carb insert mill with the correct offsets thinking that the previous programmer forgot to change the reqiured tool in the program. The overtravel in the 4th corner went away but then the cutter would still leave the unwanted material. I then tried these changes:
%
O2011(SQUARE HOLE -Y)
(3/4" CARB INSERT MILL)
G40
G91
G1Z-.125
G1G41D7X.3725Y-.8725
G3X.5Y.5R.5
G1Y.75
G3X-.5Y.5R.5
G1X-.75
G3X-.5Y-.5R.5
G1Y-.75
G3X.5Y-.5R.5
G1X.75
G3X.5Y.5R.5
G1Y.3725X-.8725
G40G90
M99
%

I wanted to move the cutter across by repeating the first corner again with the 3/4" mill but then got the CRC error on this side instead of the other.
I experimented with the wear offset to move the cutter where I needed it to be so that my hole was at 1.74" but still got the CRC error on the last Radius. Any ideas?