Angræcum sesquipedale re-potting help needed!

[Jacques]

Hi! My Angræcum sesquipedale is about 40 cm high. I have it now for 2 years growing it outdoors in summer and indoors in winter . I know it becomes a big plant and is most probably still too small to flower. The plant nearing it's re-potting but I read somewhere that it's roots hates to be disturbed. It is growing in a medium of gravel and rock wool. I don't want to kill it out of stupidity , please help.

[neb]

Is there any way you could take a pic of roots and media. Many plants in the Vanda alliance can just be put into a new holder with the old one still intact just try not to damage the roots in the process.