Read This First

First things first, you don't need to many collections while point farming, as a matter of fact you can only add a single collection. In Blur point farming we tend to add as many collections in order to utilize the point generation, however in Tensor, only the bid that is generating the most points will. So unless you want to expose your in different collections that you are not generating points from, there is not really much meaning of bidding on Multiple collections.

Another thing people commonly misunderstand is the duration/date of the bid. Because of the below sentence on Tensor's website, people tend to think that the creation date of the bid matter:

However, it doesn't. It is a misunderstanding because of the wording of the sentence. The active duration bid spent matter rather than the creation date: