Whilst testing i1Profiler some time ago I noticed that target creation seemed to incorporate a number of 'unpredictable' features, but I've created a few custom targets, that I've used regularly since.
The other day I was looking at the iPF6450 I've got from Canon, and wanted to experiment with some different targets (someone else's paper and ink is always a distinct benefit for this ;-) Noting that the iSis maximum sheet length is 26", I thought I'd make a big target for 24" paper...
The target creation process seems to rather arbitrarily jump about in layout and mix of patches, with a custom 13"x23" target turning into two target sheets (on the same sheet of paper) as you increase the patch numbers.
I was wondering if anyone has done much experimenting with larger sheet targets and the iSis/i1Profiler? If so, what numbers of patches give effective results? I realise that this is a somewhat vague request, but it's always useful to hear others experiences.