you are taking on a task that we all dread until we do it,(the purchase of a flask and the deflasking).
Here my Dimes worth.
Generally the grower will not let a damaged flask out of the growing area.Damage is mould and funus growing inside .
There are no orchid that is easier to tansfer from flask to normal media than any other.For a start it will depend on your enviroment.The general rule is that the deflasked plants want temps about 5C higher than the mature plants.A finer growing media is needed some wet sphag moss and wring out the water so that it is just moist and pack the pot with that , without opening the moss from the tight squash,and some of us use pine bark fines and then others like me us fine chc.
I find the best setup is this for the deflasking :-
Get 3 plastic contaners,about 2 litre size,half fill one with warm water.In the other I put about 5ml of a systemic fungicide and then half fill it with water.
Next is to get some paper towels and lay one down on your work bench.Now we can break the flask seal so that we may remove the plants,if possible remove the plants and their growing media all in one into the warm water.
I use a couple of scwers for the next step.Carefully seperate the plantsfrom the media and their growing mix,as the plants are seperated put them into the container that contains the fungicide untill all plants are in.Now garefuly remove the plants from this solution and place on the paper towel and pat dry.
The plantlets may now by potted up.Depending on their size they can go into a community pot or potted individually.
Watering is from overhead with a small amount of a balanced food in the water.This can be started in about 2-3 days .Misting the foliage frequenty helps the plants and is highly reconmended.
The plantlets should be placed in a shadyplace.