It all comes back to the nemesis.
For a non recessed/flush button assembly, its hard to beat. Smooth actuation, highly adjustable
throw/tension, and wit stealth cap can have a throw of ~1mm. Not too shabby. Many have imitated but none come close IMO.
Other than that, take a look at the Skeleto Key. Should be for sale at VapeRev within a week. Check their website.
Also take a look at te MM nanos for sure. Super cheap compared to say a Chi you. And finally consider the Silverback
mod by vicious ant.
Igetcha69 did a good review.
On another note Tinkie...i finally broke down and ordered the Erlkonigin based on you and qorax's experience with it