Greetings shavers!

In my enthousiasm when starting I acquired a paddle strop with a leather side and a green paste side.. Now this has 2 issues that I can figure out, ofcourse it misses the flexibility of a regular strop and it misses a canvas/linnen side.

Now I have 2 questions:
1: Is there a major difference between the two? If so which is considered better (even if this might be personal)?
2: Is it a necessity to have the canvas/linnen side?

Please keep in mind that some answers might result in firing up my AD!

Thanks in advance