Repotted Cattleyas: plant moves in pot

[Leafmite]

I plant my cattleyas on top of the medium (in my case, red lava rock) and let the roots grow down into the medium. I stake them well and don't move them for a few months until the roots hold the orchid firmly. I have the orchids on trays when indoors and the trays catch the excess water (I water with a watering can).
Tender root tips get damaged when the plant moves around in the medium. If the new 'eye' is buried, that can also be damaged. The 'eye' is the future new growth.
For stakes, I use whatever is handy around the home.