It depends on my herb supply, my allergies and my mood. I try to keep to 0.5 grams as an absolute max, but in truth Im often well below that. It is really surprising how much bang you get for your buck with good weed, size for weight wise.
Lately I am vaping a lot more as I have been blessed with an abundant crop of lovely clean outdoor organic, with a real nice variety. So I have been torn between what to use each session, every one is unique and special, diff phenotypes etc, no two the same.
Having not had enough weed I can tolerate at any point for 12 years, to suddenly having a bountiful crop of suprisingly lovely and high potency weed (for the UK and the total lack of summer), I have almost been in a panic to make up for lost time, anxiously and restlessly getting to know each one.
I have certainly increased my toletance, but I feel it will only take a short vapor break, or reduced usage for a short while, to lower it again. I have just been staying high all day and night.
Thanks to vaporizing in general, I can achievs this on very small amoints of weed, especially with the Vapcaps. Whenever I feel somewhat wasteful for going through a large load quickly in the Herborizer, I can just use the Omnivap more and the amount I use levels out over the 24/48 hours.
The Vapcap is brilliant for sampling new harvests, strain by strain, on such small amounts of weed you don't even notice it going down! Makes me feel so much better about enjoying all the hard work my mum and I do to get our clean meds, battling UK weather (basically we cant let any rain get on the autos from mid flower, or else- bye bye flowers!), insect infestation (the little bastards just suddenly have gotten right in and built up a camp, spending hours pickong put tiny bugs to get it inder control), dog hair, bird seed!
Those were the four main enemies. Plus god knowx how many hours inspecting and trimming out bud rot daily wirh prolpngued damp, dull weather.
So anyway, the Omnivap is an excellent tool to keep switching vehicle to enjoy the ride and get the most for your fuel, with the steam train beside for a faster ride at any time.
So I usually always vape at least 0.2 grams per day, but always below 0.5 max. I do try to hild my hits in for up to 10 seconds though, for me there is an indoubted correlation between exhaling sooner and using more weed for the same or less effects.
Now, back to the Omnivap early morning sampling- I think the Durban is done, what to have next? Colorado cookies? (yum
), Think Different? (which phenotype?
), Night queen? (again which phenotype?)
Need some help deciding! Being spoilt for choice does have its drawbacks!
Edit- Colorado Cookies it is! A lovely chocolaty indica, gorgous and creamy on the inhale, warming and expanding. And so uplifting too. But I might need to start a thread asking for a vote on what to vape each time the indecision is killing me!
and in that case I go through more. 
