How far out of your size range is it? 1 notch? 2? Just curious how they ride in larger sizes. Have you ridden a Vanguard before or is this your 1st Tomo? I'm wondering if your stoke is specific to the Nano or the Tomo coolaid.
I've had a Vanguard for awhile now, and love it, as well. Same story - absolutely couldn't believe how fast and responsive it was, and how good I felt about my surfing on it.
One thing I've found about the Vanguard, and have heard many others say the same, is that it performs much better in 'good' waves.
One of the reasons I was dying to try a Nano was not only my success on the Vanguard, but also because the FW guys told me the it's much more of an 'all-around' board than the Vanguard.
I've used the Firewire Volume Calculator since they posted it on their site, and I've always been absolutely honest with myself when using it - ability, age, weight.
Right now, my recommended volumes are 41 - 47L in weak waves and 39 - 43L in good waves.
That being said, I got the largest Vanguard (6'2 x 20 1/2 x 2 7/8) that has 43.5L of volume. YES, it feels like I could go down a notch or two, but I'm happy with FOAM and am stoked I'm even able to ride something that's 6'2.
The board pictured here is the biggest Nano - a 6'4 x 21 1/4 x 3 with 47.7 liters of volume. Definitely a bit of a beast, but as reported, I was amazed at how well it turned and how responsive it was.
Based on the above, I will probably also get the 6'2 x 20 3/4 x 2 7/8 with 43.8L and stay kind of in the middle of my 'overall' volume range.
The conversation I had with Echobch this morning, pretty much sums it up. We both said we're not trying to fool anybody at our age/weight/ability and want some foam under us, so we can HAVE FUN!
On the fin set-up note, I've only ridden both as quads and have heard that Tomo says they ride best as thrusters. I know all the Firewire guys ride them as thrusters, with only one of their crew sticking to the quad set up. Tony from FW told me 'The Vanguard is actually what got me BACK on thrusters, after being on quads for so long'.
Definitely food for thought.