I have a pair of empty L100A cabs that are in very good condition. I have close S/N 123A-1 woofers. I also have close S/N LE5-2s. I am stuck on the LE25. I have a pair of LE25-1 but only 1 foam circle. I also have a pair of LE25-4 with the raised circle of aluminum and the black dense foam.

Would it be heresy to use the LE25-4? Any problem with the electrical properties vs the LE25-1?