hiya Sammy !
thanks for asking , and thanks for your feedback , I'm ALWAYS keen to hear what others do , too !! cheers Sammy !
yes , I have tried it both ways...
catalysing the pigment in the individual cups , before adding to the main batch of clear resin ,
and , also ....
[as you see here ,]
catalysing the CLEAR resin in the main tuna can .... and then dripping straight pigment in there . Yes, not diluted in resin , in this instance .
But again , yes , I HAVE diluted the pigment in resin before catalysing and adding to the main batch , in previous swirly panels . For instance , when I was needing to cover an 8x10" panel's area , and wanted the colours to make it to the whole four corners , evenly covering the glass]
The next step , when all the colours are added , was that I gave it a a REALLY light touch [/ ?"quarter swirl?] with the paddle pop stick . After which I poured it straight out on the glass [ which in the first panel's case , looked like THIS result , before I laid 4oz cloth over it ....]


" the pigment suspended in plasticiser "
.....what is "plasticiser" , exactly ?
I've not heard that term before , perhaps it goes under a different name in Australia , I'm not sure ....
cheers !
ben