Astrozap flexible dew shield

I have one for my 8" SCT. I roll it up when not in use. What is the best way to get it to keeps its shape when using it? Mine sorta both looks funny and sometimes even slightly collapses, presumably blocking some light.

If you are not familiar with the Astrozap, it is made up of flexible black foam, looks like neopreen, and has velcro to hold it together.

Thanks

Paul

I use one too, and keep it rolled up in a 4" square box when not in use.
At first mine was shaped funny when I tried wrapping it around the end of the OTA but then I discovered that if you attach the velcro evenly first then slide the shield onto the OTA it retains the round shape and doesn't look funny. I have a 10" SCT so mines a bit longer than yours. I don't know how that would affect things