I have the 510-901.
My caution was directed at Isaac both my other "non stealthy" adapters 510-801 and 510-901 have an adjustable air draw, which in turn also ensures positive contact of the center posts.
The stealth 510-901 from Health Cabin (which Isaac mentioned) is non adjustable and to further exacerbate the problem, the center post is too short and does not make positive contact unless you
mod it. This includes on the P18, as we both know the center post on the P18 is a little longer than other PVs, ensuring a positive contact.
@mwa
Don't get your knickers in a twist here, we are carrying out a conversation germane to the semi and mini. Like you never derailed a thread in the past
.... bringing it back on course, the attys are branded IKV