OK guys - so this is how it went down.... I ground and packed about 0.1g, maybe less - hard to say, into the FM, let it heat up to the lowest temp. I hit it with one drag, very conservatively..... Waited 10 mins, nothing much going on, maybe a slight feeling. Heated the FM up again on lowest temp, hit it again, couple of times this time. Waited another 10 mins, slight heavy feeling going on now, but felt like I needed to go further, so heated the FM up again, on medium this time, hit it again a couple of times - actually saw some vapor this time, which felt more productive - on the low setting I wasn't even entirely sure I saw getting vapor. Again waited 10 mins, this is when I started to feel really relaxed, a very heavy feeling, some tingling in my legs. Decided I wanted to go even further and again set the FM to medium and hit it again a couple of times. This really got me medicated this time - very very relaxed and heavy feeling - must have been high at this point but kept thinking to myself "Am I really high?".... (Is that normal?)
I tried to watch a movie at first, but couldn't concentrate on it so switched to music videos - these looked incredible, so sharp and vivid, the music sounded amazing too, like there was a clarity I hadn't heard before. I found amazement in my iPad - just scrolling web pages seemed amazing to me - how a piece of glass in my hands was doing that, my finger on the glass felt electric. Started to feel sleepy after this, so retired to bed, lay there for a little while and drifted off - felt like I slept differently, I don't know if it was more restful, just different to normal.
Woke up this morning feeling great - normally if I'd been drunk to a similar level I would have woken up feeling pretty rough!
On the whole, a positive first experience. I was maybe expecting a bit more of a euphoric feeling but it certainly wasn't unpleasant in any way. I guess it will take some getting used to and it will be more enjoyable as it becomes more normal to me. Not sure I could do it every night at this point - but certainly will be doing it again soon to get some more practice
Thanks for all the advice and tips - really helped and make this a positive experience for me!