I enjoy microdosing sometimes, and for this purpose I really LOVE my Davinci IQ. I have found that using one of their glass spacers produces more vapour as the glass spacer counducts and retains heat more efficiently; resulting in better vapour production and me getting the most out of my herb...
Finally got the Dr Dabber here in South Africa, and its changed my life! Definitely excels as a dab rig, but still works really well with dry herb.
And for sure works well with old school hash too! One happy vaper here