Perfect bags work fine/6500 problems
I'll address two issues, problems with the 6500 and the use of Perfect bags.
Were the 6500's problematic - no. Does this newer wand system have more problems than the older steel style - yes. One must remember that the more moving parts one has, the greater the chance for breakage/problems. Originally, the wand system had actual swivel metal to metal contacts in the power head elbow. Kinda somewhat like how the hand grip contacts are. Later Lux changed this system to actual hard wiring. The wiring runs down the elbow and into the motor. No moving electrical contacts. This new style does work better. Also, the opening in the swivel body where the wiring runs was mad smaller, lessening the chances of the wiring getting cut/pinched. Also, certain areas on the swivel body, the plastic was beefed up,(made thicker) making it more resistant to cracking/breaking. Yes, more repairs are made to this style of wand system, but more units are being sold with this type as well. Compared to many other swivel body assemblies out there, this system isn't that bad. I'd take it over many others.
The other area that did cause some problems are the actual contacts in the wands. Alot of this is from user abuse of the wands. Part of this is from people dragging the wands in dirt as opposed to using the little insert to prevent breakage of the contacts and rounding the edges off the wands.
Now in regards to the Perfect Bags: I will not use a paper bag in any lux again. The Perfect bags filtering ability is far superior to any paper bag. I also find the airflow to be greatly improved as well. What a great benefit. The only problem with the Perfect bags is that the collar is about 50% thicker than the standard lux paper bag. This does make it a little more difficult to close the door. I can also see the rubber gasket on the inlet becoming a little compressed over the years if you're using the perfect bag.
One last final rant, lamb motors are not being used in lux products.