When I popped the spider on my 15" , I reglued the whole thing with epoxy, I do not think it was going to come back off, even from the 2500 watts I was giving it.
I reglued the whole landing, I put the epoxy on the landing and the spider on top of the epoxy, when I went back to tear it down, ****, it was really hard to get the reepoxied spider off.
When I tore down my 12", it consited of me taking a screw driver and pushing on the landing, it popped right off with an audible crack! Cheap glue FTW!