Starching Muslin - How far can you go????

Well after researching how to make muslin stiff, I have decided to start with spray starch. Dylon Starch. I have cut my muslin into 30cm squares and sprayed one so that it was stiffened, whilst keeping one plain, without starch. I then hemmed each on all four sides and folded and ironed it into an origami geometric pattern.
Firstly, the un-stiffened muslin:

It was floppy and lifeless, it didn't hold itself well even after ironing and when stitched to hold its shape it just lacked confidence.
The lines looked untidy at the centre and where all lines met it was uneven and lacked a professional look



Secondly, the stiffened muslin:

If was clean and sharp, it held together well after ironing. It was easier to mould so that the lines met cleanly at the centre and it gave the piece more volume and life.
It would need to be tested on dyed muslin also as there was a slight colour change when starch was added. I would also need to assess how much it would effect the dye and whether it would add to the dye running once I'd gained the pattern desired. I also want to see just how stiff I can achieve and how much starch that would require.