With the greatest respect just because you had problems with spraying the paint does not make it fatally flawed. If it were so prone to the clogging you had how can I spray it on a daily basis without problem? Surely it would behave the same for me?
To say lifecolor regularly crops up as a problem is wrong and I am going to stand up as a professional user and say the exact opposite. I use various paints and share your enthusiasm for Gunze too but getting the tops off them is enough to make you throw them away sometimes! They do not brush paint well for me and I have found touching in sprayed areas with a brush is not very successful. They also lack the range of armour colours but for aircraft they are my first choice.
Spraying paint is notoriously delicate balance of paint consistency, air pressure and airbrush set up. Get one a bit wrong and you will have problems. I had a problem recently with Vallejo paint starting to clog as I think the paint was staring to settle in the airbrush cup. It was probably more to do with me using water to thin it but certainly not reason to label all Vallejo paints as not great.
This was all sprayed with lifecolor and it's 1:16 so not a quick job it took a whole pot of Lifecolor dunkelgelb. Three years work - would you risk painting it with an inferior paint?
AFV Modeller Magazine