The Recycling System can save you crone, but it's too slow to be very useful if you are a fast killer.
You can recycle up to 10 items at a time, or just 2. If you want to get the most number of recycles, you're obviously going to do 2 at a time, but you have to click the arrow 8 times to do that, and it won't let you click it fast. It wastes so much time.
It starts you off at 10 items. 8 items will be wasted if you do, because there is no benefit to recycling 10 instead of 2.
This could be fixed by starting the #of items to be recycled at 2 instead of 10. It is necessary. To get the stats you want, you have to go through 8 slow, useless clicks dozens and dozens of times...