Agreed. These are way easier than most other speakers. My advice would be to get a kit that also comes with replacement dust caps. If you shim the voice coil, then you are guaranteed not to have rubbing when you are done. You don't want voice coil rubbing when you are pumping tons of power through these. That does require replacing the dust cap however.
Some pics from my refoam:
The only problem is that my kits didn't come with replacement gaskets, and it was impossible to save the old ones. I just left them off.
I had two pairs also at one point. I hauled both pairs to my friend's house up in the mountains, where there are less neighbors. They just worked so much better in that situation, with room to breathe. I ended up giving my friend a deal and sold him both pairs. Made for some fun parties. :yes: