TJ mesh plate 2A3 ?

Have a Fi-X on the way, and I wonder if anyone has used the TJ mesh plate 2A3's in your amp (whatever it is), and if it was any significant improvement (relative to its cost) over a single plate Sovtek or EH ?
I have a set of those for my bottleheads. The system includes a tube pre and klipsch chorus2 speakers. I have found in my system the Meshplates provide the most control of high mid and low. However I preferr a set of NOs RCA blackplates for a liquid deep 3-d soundstage. THe TJs seem to sound a little to harsh for me.