Thanks for the article. I hope others will contribute.
My quick method is to use rubber bands for temporary ties. First I use larger bands and change to smaller ones or pinch off the big ones if needed to allow the pb.s to grow closer very gradually. The rubber bands move easily up and down on both sides as well. It is also easy to change the angle of the new growth by using another rubber band hooked on to another mature pseudobulb or stake as needed.
Sometimes I also use the common coated wire plant ties on the old pseudobulb or stake which is then tied to a rubber band on the tender young shoot. The plant tie could be gradually tightened as the shoot grows new cells so there is never too much tension on the new growth.
As you can see now this oncidium spike fits into its allowted space.