Horsesandorchids - good for you!!! I get so excited when my orchids get new leaves - and a spike puts me right over the top!
I just repotted all of my orchids in a premium sphag with lava rock and granite chips. Prior to that, I had them in bark, but they were starving for moisture.
I used to run them under the faucet to remove the accumulated salts, but am wondering now with the sphag, how do you flush the salts?