What are the water temperature points where you switch from one kind of wetsuit to another, from warmest water to coldest water? I know it also depends on air temp but to keep a constant lets stick to water temp. Also if you can mention where you usually dive.
I would offer mine first but I honestly don't know. I don't pay attention to the temp, if I feel cold I put on more suit. I usually bring in my bag a change for one level up for if I misjudge how I'm going to feel. But I can offer my progression without the corresponding water temp.
1. Speedos and Lycra rashguard (no hood). Or 1mm inside and outside lined pants and Lycra rasguard. I haven't found ideal pants to go with this yet. Lycra pants seem a little fruity.
2. 3mm open cell inside lined outside jacket (no hood), with 1mm lined inside and outside pants.
3. 3mm open cell inside lined outside jacket (no hood) & pants.
4. 5mm open cell inside lined outside jacket (no hood), with 3mm open cell inside lined outside pants.
5. 5mm open cell inside lined outside jacket (no hood) & pants.
That's it I haven't dove colder than this. I dive from Homestead to Port st Lucie but most often near Miami.