Korg Poly800/EX800 Users

Regarding the instructions here:

http://analog.no/mods/korg_poly-800_mk-1_battery_backup.htm


    *  Open the Poly-800 by removing all screws at the bottom. Locate
the processor board. This is the large circuit board next to the
battery compartment.
    * In the upper left corner you'll find Resistor R1 and Diode D1.
Remove these. (Just cut the legs, but leave as much as possible of the
D1 legs, see next steps.)
    * If you have a late revision MK-1 there will be two fairly large
solder "islands" in the center of the board. The battery is mounted
here. The "island" to the front of the keyboard is ground.
    * If you have an early revision you wont find this. The battery
must then be connected by wires, the plus to the junction between
R1/D1 and the minus to the other leg of D1.
    * Any 3V lithium with solder lugs can be used as long as it is not
to big physically for mounting to the board. A wristwatch type (2025,
2032) is fine.



I have the model with the solder islands, do i need to cut the legs to
R1 and D1?  Or can I just solder to the islands and leave everything
else intact? 

Thank you.