ZX-5 Undertray, do you use one?

[littlened]

Just wondering if anyone uses them?

I got one a while ago, but found I couldn't use velcro for the shell because it made the bottom of the shell too wide. Instead I left it using the holes, but at the weekend found it a complete pain putting the pins in.

I broke the undertray at the weekend anyway so now I'm going without this weekend.