You should try the 1 & 2K then...you will be hooked and Shapton GS stones will have your honing soul, cause then you will need the 4,8,16K!
I am a coti guy tbh with you. I have really sensitive skin. the 500 basically acts like a turbocharged 1k anyway. If I were a synth guy though, I think I'd go for a full set of the things. The refusing to load aspect is wonderful.