Yes sandnsea i also do that.
I never understand why sellers go to all the trouble of wrapping, taping, stuffing to send there orchids in there pots with there mix without it going everywhere in the post. Only for the buyer to take 1/2 hour to unwrap/untape, then to unpot, chuck out the mix and find half the roots are rotted and theres bugs in the mix. Seller should have checked it first and sent it bare rotted so buyer won't complain.
Ive received a few orchids with slugs and no roots so now i try to get the seller to send my orchids bare rotted when i can.
Sellers say they send in pots so they don't disturb the roots but you can disturb orchid roots can't you. How much would they really be disturbed! hehe!