[s-cars] POS Question

[riff944 at cox.net]

H All-

My car developed a miss yesterday.  Followed the instructions on SJM Autotechnik on trouble shooting the POS and found it was cylinder #3. Well after changing the POS side to side I still have the problem.  Looks like I am due for a new POS.  

Questions I have is that I also pulled the plug boots to see them.  On #3 there was a white mark that looked like residue from it arcing to the head at the coil.  Picture available here:

http://forums.rennlist.com/upload/plug_boot_sm.jpg

Could the boot be bad and cause the POS failure?  I would hate to buy a new POS and have this happen again if it is the boot's fault.  

Also is it very bad to drive the car with the miss?  I will order the parts today, but probably won't get them until mid-week for install.  Would I be doing damage to the car to continue driving it?

Thanks,
Riff

'95 S6