SBOX Help??

[Sl!ck]

I got a PS2 SCPH-3001R with a Sbox mod installed. I got Gameshark 2 V2.0x??? not sure
which one I know it's 2 or higher. I am having problems getting it to boot the Gameshark boot disk every time. It's seems pretty hit and miss to me. Once I get the game shark cd booted I don't seem to have any problems. Here is my most successful way of booting GameShark CD.

- Insert GS2 Boot disk
- Make sure GS2 Card is in memory slot.
- Power off PS2
- Switch off Sbox
- Wait like 30 second. Power on PS2
- Hold in Reset till Playstation 2 appears

If I get to where it displays Playstation two on the all black screen I can normally get games to boot fine, but sometimes it seems it just doesn't recognize the disk and goes to the Instert Formatted Playstation 2 disk.

Anyone got any ideas on a more consistent way. I've tried several other methods.
Like Hold reset in 3-4 seconds with the GS2 disk in.