I'm like mattiem above...if I'm not active I vape more. Sitting at the computer, I pretty much chain vape. I'm not worried about it at all. I smoked 42+ years at 1 - 1 1/2 PAD, so vaping as I do isn't a concern for me.
I'm vaping 6-7mg eliquids, and about 7-8mL per day, or more sometimes. I vape by pulling the vapor into my mouth and only slightly down the back of my throat, hold it there a second or 2, and then exhale through my mouth and/or nose. It gets me my "nic fix" with no problem, without even inhaling it into my lungs!
My health has improved (BP down, blood oxygen levels way up, etc.) and my doctor says my lungs are clear...which they hadn't been for years while smoking! Even my mild COPD that was diagnosed years before I quit smoking...is no longer evident on X-rays. So, with results like that...I'm personally going to continue on vaping as I have been for 3+ years now.
EDIT: If I were you, I'd keep vaping whatever amount and frequency is necessary to keep you off the smokes now. After you've been off them for awhile...if you want to change anything, then try it, as many people do as time goes by.