yep, looks like the A7 would work. also, the M6 from FT will work too. i have one on my vmod and its outstanding. the reomizer is another option.
High Desert Vapes has the best price on an A7 (14.99 minus 20% discount with code NEWYEARS)
the M6 is $4.96 and has a better pos post than the A7 (M6 is spring loaded). the A7 requires a easy
mod of a strip of silicone (carto condom) around the adjustable pos pin.
reomiozer is pretty much sold out everywhere.
edit: i know someone who is tryign to sell 1 or 2 reomizers so if youre interested, i can give you his ECF handle.