Jason and I did our first fibre install this week - it went very well but it is definately a different way of working:

• The cable (particularly the four-way stuff) has a mind of it's own - you can figure-8 it but with care.
  
• You can pretty much always see if a joint is good but you get a slightly different view looking down the microscope compared to viewing it on the monitor - the monitor seems to show up problems with the exterior of the joint whereas the microscope shows problems on the inside of the "pipe"
  
• Applying a bending strain so that the fibre makes a 360 hoop about fifty mil in diameter will break the joint if it is bad.

I'll post some video-grabs from down the microscope to illistrate these points.