[Mike Parker]

Hi Neal

Your .5 needle/nozzle combo should be fine

Mentioned already by Kenny createx is probably the best known brand you can use although I've used hobbynox without issues

Thin by 3/1 don't be overly concerned about the shelf life after reducer has been used, just as long as its kept out of cold and paint is given a good mix next time its used should be fine

I tend to use reducer, tap water if I don't have any. You can use any reducer whether it be RCS, hobbynox etc it's not vital you have to keep to same brand as the paint you use

One thing though do not use a chemical based thinner/reducer on water based paint