Turnigy Prop drive 28-26 1000kv, which props?

[Flyinegypt]

I am considering using these motors partly because they have a bolt on prop adaptor which is far safer but they also seem the right size for my needs. The question is, the data on the Hobbyking site only mentions 9x4.7 props. These apparently draw around 10A on 11.1v. As the motor has a max current of 21A would I be ok to use 10x5 props. Anyone experience of these or are there better options out there?

They would be used on a hexacopter about the size of a SIX glass fibre hex like this http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idproduct=26514

[Jumpy07]

10 inch would be fine..  and sound about right as long as there is room
Best Regards

Craig