Drum roll..
Ok to all that have been following this thread I will let you know how my long weekend went with three different boards.
First of all, the volume and dims I mentioned earlier were off.
Board 1 - 6'2 a very fat shortboard, I guess you would call it a groveller style board. Fat through the middle and still pretty fat in the tail. 42L
Board 2 - 7'0 Funboard. Really fat nose, pinched in tail. Plenty of foam in the middle. 48L.
Board 3 - 7'6 Funboard/Mini Mal. More tapered throughout, a nice sleek shape. Still fat in the middle, more of an 'egg'. Volume (wasn't marked on board) but my guess would be 50+ at least. Very thick and stable board.
The weekend had really poor surf, mainly due to onshore winds around 15-20MPH. Swell was between 2 and 4 foot but very crumbly. Still plenty of people chasing waves mind you.
Board 1 - It was nice to try out a board this small. Paddling was difficult, not unbearably difficult but I exerted a lot more energy over a short time frame. Very different to my current (old) foamie of around 60L. Wasn't very stable during pop off and I probably caught 2/10 waves I paddled for. So definitely not for me at this stage of surfing. It was nice sitting on something small in the lineup and being able to quickly turn around but what's the point if I caught so few waves. Will remember this board for a few years down the track when I am fitter and more experienced. I also did my first duck dive on this 'fatso'. This board was also quite easy to sit on waiting for waves.
Board 2 - This board paddled really well. I'd say better than my foamie. The nose is so fat on this thing it was a pleasure gliding over waves to get out the back. Approx. 6/7 waves out of 10 I paddled for I caught. Popping up was pretty good, not amazing. As I am used to my very buoyant 6'6 foamie it probably wasn't as stable but the length really helped. When my back foot was placed near the tailpad it was quite skateboard like and very responsive. I managed a few small turns before waves crumbled and sent me straight to shore.
I enjoyed this board quite a lot and felt like I performed much better than I did on the foamie (probably user error but nevertheless). On my last ride in I popped up really early and positioned myself in the middle of the board and this thing absolutely sped, it was a surreal feeling. As the wave inevitably crumbled I jumped back on the board a little and turned and went up the lip before shooting back down. Most enjoyable ride of the weekend by far.
Board 3 - Great and stable to sit on, paddle and pretty much everything else. It paddled over waves differently but in good way (maybe due to foil) but still I didn't have a whole lot of trouble getting out the back (albeit a few dodgy turtle rolls later). Pop up was pretty solid on this thing. Plenty of foot room. Kind of felt as where I popped up was where I had to stay. Of course this is user error. Had some issues trying to avoid people around me on this board. Was less skateboard like and more set and forget (poor analogy). I don't think there was a great difference in the number of waves that I caught compared to number 2. Maybe slightly higher.. Perhaps a clean 7/10 as opposed to more like a 6/10 for number 2. It was harder to spin around on in the line up (marginally) but overall a fun board that I had a few nice rides on. I did like all the foot room and how you can walk around the board a bit more. The best thing about this board was the stability. Once you were up, you were really up and you were moving pretty bloody quick.
So overall I liked board number 2 the most. Perhaps I felt that this board would help me progress a little quicker, I don't really know. I think maybe something between the two may have been ideal.
Either way I bought it (the 7'0)

It was $200 cheaper then the 7'6 and same price as the 6'2 (not that I was going to buy that)..
So coming back to my original post on this topic where I was looking at shorter, fatter boards...
Yes they were really cool and fun to sit on something so short, but I believe they require quite a high level of skill to actually use them as they were designed. I will look at one again down the track, but these boards were not for me now (as other users noted...)
Also as a side note, support your local shop! My local let me demo/borrow two of the boards before making my decision. I am a very much an
online shopping kind of guy, trying to hunt rock bottom prices for anything from clothes to white goods, but I really dug talking to someone who knew a hell of a lot more than me about surfing. I'm sure many people have commented this before, but for me it really made the experience a whole lot better.
I hope this post helps someone who is in a similar position, or maybe someone who will go through the transition from short foam board to fibreglass.
P.S fibreglass boards hurt a lot more than foamies

try to wipeout backwards and cover your head
Cheers