Flyer Drives not showing on Workbench screen

[T3000]

My flyer drives are as follows:
Video A drives ~ FA0 FA1 FA2 of 8, 18, 18 gig
Video B drives ~ FB0 FB1 FB2 of 9, 9, 18 gig
Audio drive ~ FC1 of 9 gig - FC0 went bad and removed, eventually to be replaced.
CDrom on FC6 - eventually to be replaced with a CD or DVD writer for flyer clip and project back up.

Best bet would be to get larger HDs and have just one on each chain.  Even better, CF cards would fit nicely inside the A4000D chassis eliminating the need for a Flyer tower and that damn octopus cable.
it's only money...

Any info on these questions would be useful:
1- How does one get rid of the ghosted amiga dos icons for the flyer drives that show on the workbench?
2- Where are the default desktop Flyer icons located? Would like to substitute default icons with smaller ones to possibly save on chip ram use.
3- How to snapshot the desktop Flyer icons to help keep the desktop neat if thats possible?

Thanks

[T3000]

@T3000,
What 18gig drives are you using and how do you have them converted to 50pin SCSI of the Flyer board.

Fortunately, I purchased the drive bay used with listed drives and a malfunctioning on/off switch from a working environment that was being parted out.  The drive bay was professionally set up. I started with three drives stacked on the desk while setting my system up. Not bad for $250.

The 18 gig drive is a 68 pin, Seagate Cheetah ST318404LW
The adapters are stickered with the word ACTIVE and look like this

edit ~
hmmm...   after putting the case back on I seem to have lost FB0:
The drive is showing up with scsi inquire but not in the Flyer HD tools or in the flyer project interface. Also the ghosted icon reads FB0:\0\0\0\0 where as the ghosted icons for the other working flyer drives read FA0:FLY\0   FA1:FLY\0  etc.
sigh...