The Flyer A-class from AHPC does seem interesting but like the other options, it doesnt state anything regarding spis.
Actually no A-cat builder will mention spinnaker packages in their leaflets or on their webpages. All of these will void warranty if you after-market a spi to their boats. Only Marstrom mentions a spi package because their M18 is a modified version of their A-cat. However the M18 is NOT an A-cat in the strict sense.
Let me explain.
The M18 uses the same shaped hulls as the Marstrom A-cat and it even may use the same rudder setup and daggerboards. But then the two boat start to diverge in design. M18 has wider beams, a modified mast, a larger mainsail then the A's, modified trampoline and modified other stuff like sheeting systems.
I'm not sure whether the hulls of the M18 are exactly the same as the Marstrom A-cat in every sense. Laminate, reinforcements etc. But in Marstroms case, they overdimensionize everything, they can well be.
As for getting a shadow .. It says on the site that its about 100kg (lol I dont think I want to try righting that cat anytime soon).
It will right itself up under your shy 70 kg. No worries.
We must be careful not to see the A-cats as the only catamarans that can be righted easily singlehandedly.
Not too long ago (15 years) the A-cats themselfs were a good 90 kg with a very similar mast section as the shadow is using right now. Back then these A-cats were promoted as a dream to right as well.
The nacra A2 does seem very interesting. .... How do they perform? .... and if its performance would match up to the Marstrom A-cat
I think you will find that it is rather the Marstrom A-cat that should be questioned whether it can match the performance of the Nacra A2 A-cat.
The M18 however will beat the Nacra A2; the spinnaker is just to much of a performance booster.
Wouter