What are your thoughts on this? Single or double tongue on the bassoon?

What is

tounging

a bassoon?

Is double tonguing practical? Yes. The more skills you can learn, the more skills you can master, the better and more competent player you will be.

yes i agree any skill u can learn will make u better

It's definitely not something you want to dive into. You should improve your single tongue speed first only because there is a difficult tempo range where it is too fast to single tongue but too slow to double tongue. Also, I'll point out that as bassoonists, we never really tongue- since that is so difficult to grasp, bassoon instructors often teach that one should only tongue with the "front two taste buds of your tongue" or something to that affect.