I haven't heard of any complaints on the kits when fitted to the intended tanks. I should have my two kits in about 2 weeks or so, depending on when local Post decides to come back to work after the myriad holidays they have from mid December to late January. The minute they arrive, I'll check them out on the Elefant and a Tiger 1 I've got sitting here. If there's any problems, I'll post them.