NSI colour gels-mixing colours?

[Laurza]

Hi all, I was just wondering if nsi balance colour gel users could advise me about mixing colours...I did mix cerulean with mint a couple of weeks ago and the colour was gorgeous it was a Tiffany green...but how much do you mix for a set? I don't want to waste my colours mixing if not all going to be used...I have no idea how many sets you can get out of a full pot
Also
How many colours do you have? I have 22 n still think I must get more :/

Any help would be fab thanks xx

 

[MissLavender1]

Where do you buy your nsi gels from? What do you think is worth investing in?

Thanks