Same here, Kester 44. I use .5mm in order to do the occasional SMD things. It needs to be flowed in fast for bigger joints.
I also use Kester 303 (water soluble) in .8mm for a lot of stuff, mostly because I still have a lot of it. I think I slightly prefer the .5mm but I don't plan to try anything thinner.
I also use Kester 303 (water soluble) in .8mm for a lot of stuff, mostly because I still have a lot of it. I think I slightly prefer the .5mm but I don't plan to try anything thinner.