Thank you ladies.
Do you know that those slotted strip cutting rulers cost well over $100 here in Australia and I can't imagine ordering it online. I think they would be so hard to pack, resulting in such a huge package but they are so cheap at QIAD.
I reckon you've answered my question on rotary cutters.
Interesting to note that Holice mostly uses her 28mm.
I found my 45mm hard to use at first but am now getting the hang of it.
Will have some pictures of my first project to show you soon.