Skyebucks

Hi, hope you're fit & well. I've just been reading your thread re Tyres. I want to change my front two as they have been on he car a while (7years). I was tending towards the Michelin Pilot Sport as I understand you did. When I googled them I kept finding PS 3 not the PS 2 mentioned in your thread by a couple of contributors. So my question is twofold. What's the difference? and which did you go with.

Regards Dennis