Spiral Vase mode may not be suitable for ASA filaments
Why? Just because it causes blurry images ? 
Vase mode works for all filaments if you set it right and have the filament calibrated.
Just saying…
If you are concerned about the deformation then that is quite normal with filaments that have a certain shrinkage, ABS or Nylon can be really bad here…
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There is indeed obvious shrinkage deformation
‘obvious’ is maybe a bit strong, given the 17 total pixels in the pictures. Single-walled structures printed in a warping filament will be very difficult for you to fight warping in the P1S. You’ll probably want an actively heated chamber like in a QIDI Pro or a blend of ASA that has CF/GF in it to resist those forces, if it has to be ASA and has to be vase.
I installed a heater in the P1S, but I didn’t use it.
The heater has limited effect.
I never use the spiral vase , this is only a height test.