The SP01 shadow and the Tactical, they both have steel frames, however the shadow has a safety lever and the tactical has a decocker. On the other hand the SP01 phantom has a polymer frame (i.e. reinforced plastic frame) just like a Glock. The polycoat is a type of surface treatment finish for alloys and steel. It gives the gun that deep black finish.
The SP01 tactical and shadow would have equal performance, they are basically the same gun except for the safety/decocker difference, but they have the same weight and thus the same performance. The phantom is much lighter (because of the lighter frame) and I can only tell you about my experience, I love CZ's because of their easiness to shoot and I bought a CZ 75 SP01 TActical, and it is for sure the best of my collection. The thing I love about CZs is their weight that helps alot in accuracy and target reacquisition due to the controlled recoil...I haven't tried a phantom yet, but I hope I have answered your questions.
Check my posts on "which pistol to choose" and "My CZ Range report"