Both pair of L pads on my newly aquired L100 are in need of cleaning. After removeing the crossovers from the cabinets I found that the unit is pressed on and does not have any openings to spray in contact cleaner. Not wanting to damage the L pad cases trying to remove the back I was wondering if a member has tried drilling a very small hole or holes to spray in contact cleaner, I would like to salvage the orignal L pads if possible. Going thru my spare parts I have more L100 crossovers/L pads that differ in size and some with and some without vent holes on the back of the L pads. For now I have decided to use a pair of crossovers with L pads that have vents on the backs of the L pads and I sprayed in contact cleaner in both and they are working fine. I have four (4) new Fostex 8 ohm L pads but they look like they would be a tight fit on the crossover board and L would like to avoid useing them if I can clean all the original L pads that were mfg in Japan and should be of very good quality. Appreciate any suggestions from members.