For me, these are quite different.
Symbios W (peeled) have a stiffer silicone, are slightly smaller in OD and the bore though on the larger side is smaller than the Spiral dot. The sound effect for me is that the mid bass is slightly accentuated, highs fairly controlled if not attenuated slightly and the soundstage is medium sized. In my opinion, the New Bees tips are darn near identical in sound and construction but use a softer silicone which for me is more comfortable for prolonged listening. The New Bees sizes are a tiny bit larger. I use the large tips in both.
The Spiral Dots have a softer silicone, hence are more comfortable than the Symbios and New Bees and the bore is larger with the Spiral dot pattern. The mid bass is flatter allowing more subbass presence and the highs extended giving a larger soundstage. I consider these tips more neutral with the largest soundstage of tips I've tried. The OD of these tips larger than the equivalent Symbios and New Bees sizes and for me are a better fit and provide a better seal.
With most IEMs, when new, if they have too much treble, I'll use a Sony Hybrid tip, MH755 tip or Symbio/New Bees to control the treble. I've found once burned in, if the treble subsides, i switch to the Spiral Dot and that will be my preferred to unless i want to kick up the low end and attenuate treble. You don't have to believe in burn in, but that's my experience and I have a couple data points supporting this.
