Are 2 blades better than 1?

[IR5]

I have a 36" Husqvarna walk behind mower with a 15 HP Kawasaki engine. It came with a general set of blades but I put a mulching kit on it. My question is, If I installed the original set of blades with the mulching blades, simular to Honda's Micro Cut system, would that make a difference?

 

[Rivets]

Yes it will make a difference, like shortening the life of your spindles, engine, and possibly you. If you try doing that you are asking for big trouble.