SF Grand Piano Home tweeter upgrade

Just wondering if anyone has upgraded the tweeter to something like the Vifa Dual Ring X25 variant? With the 2.5 way design and Xover at 3K..seems like it may be a decent replacement, and cheap enought to try a t~$35 ea...I am wondering about fitment/model tweeter or if an L pad was needed or any other tweeter as a better upgrade..any thoughts appreciated.