I love the little monkey too!
Teena, the Zen and the iHybrid are hybrid PVs.
Where the
tank and battery tube are basically one unit. Well, the iHybrid the tank portion screws on, but still.
The hole opening where the drip tip goes is in the top cap. Some drip tips, the "stem" can be a little long, which will cause it to bump up against the top post in the atomizer part under the cap. And, block some air flow.
They can also be a little wide around, making it difficult to get the tip in the cap.
Neither top cap would have the little bit of "give" that a cartomizer would.
I just sanded my two tips a bit to make for a better fit.
You could, I suppose, get a Zen top cap to test for fit around, but it wouldn't help much with length unless you had the atty/top post portion.
I know they are available, but would have to check if they are available right now. LOL
I do not know that the iHy caps are sold separately, but I believe faceless would help you out there, even if he just gave you measurements.
Maybe someone with some calibers and a few different drip tips could help out with that.....
like they need to be less than x tall or y around for the "stem".
Just a suggestion! As your tips are gorgeous.
Edited to add:
I just looked at the top caps again... and they would help with both length and around.
You can see in the cap where the tips end.