Ahm, what? English is not my first language either but, Sir, I had to read your comment 8 times until I understood what is your concern.
So I try to figure out:
- You're talking about the Dotmod Petri Lite?
- Your mech mod isn't firing as good as in the beginning regardless which RDA you put on?
If this is the case you might clean your contacts first. Disassemble your mech mod and clean all contacts and threads with Isopropyl alcohol. Did you change the build on your RDA for some reason? At what Ohms do you run your builds?