There it is again!
That myth that the Taipan is somehow a unique design in it's ability to switch from sloop to uni-rig to spi.
There is absolutely, positively NOTHING unique about the design of any f16 which makes it anymore "versatile" than any other similar boat.
You can leave the spi off ANY boat and sail it.
You can Uni-rig ANY boat and sail it.

Even Bill Roberts has conceded that his designs can be sailed with or without jib or spi.