In hand showing a 2 yo ID

[VScall]

So I've recently become the owner of a lovely chestnut, 2 year old ID.
In the process of sorting her passport and it's been suggested I have her overstamped by IDHS GB.
Should I have her graded? If so, how do I go about this!
What should I wear, and what should she wear for inhand showing?

Any advice welcome.
Thanks in advance

 

[FrostKitten]

If she's been imported she must be overstamped by IDHS GB. You can get her graded at Mare inspections, already closed for 2021 though.