Reply to Fader fx problem with vci-100 black

Hello everyone,
I have an Vestax vci-100 black edition with 1.2 firmware, and i like it so much with the great mapping from djranking s en the overlay is also very good.
Still i have some questions, i have the 3.6.4 mapping downloaded and then you can select the 1.3 or 1.4 firmware mapping, which one is best for my still standard 1.2 vci?
I know have installed the 1.3 and my fader fx mode doesn't seem to work unfortunately, i hope someone can help me with this, because i would love to change the effect with the faders, it gives it that much more control!