Yes we have found the same, some inks started to separate and run on certain films and the colour density, brightness etc varies a lot, but we are definitely hot peel fans. My son is working on the ICC's as well to match the vinyls we have used before to give our customers continuity of colour with DTF prints, also we found blue prints have not been anywhere near as good as other colours, not dense and vivid except one film we tried which was brilliant but they have changed it from a hot peel to a warm peel i.e. about 5 seconds so we are waiting to try that.