PhDHES Stems for ArGo & Solo

[John Coaltrain]

I'm heading out to Planet Vape today to pick up something, and am also thinking about trying a PhDHES stem (preferably for the ArGo, perhaps also the Solo II).

I'm hoping the model for the ArGo is longer than its stock stem. Can anyone vouch if the stem is longer?

Has anybody tried either of these, and can comment on them?

http://www.planetvape.ca/phdhes-high-efficiency-vortex-stems-for-arizer-argo.html

http://www.planetvape.ca/phdhes-3d-atomic-flow-booster-stem-for-arizer-air-and-solo.html