That's a good tip, but I'd need the protrusions to be much longer since my snipe is about 3 inches long. Two more tips I'll share that most probably already know.
1. One cause of snipe is lack of support for the free end of the board as it enters and exits the planer. When only one roller is in contact with the wood, it doesn't exert enough down-pressure to overcome the weight of the board hanging unsupported off the end. The free end of the board drops a little, sending the opposite end up into the blades.
2. Another cause of snipe is flex in the frame or lift mechanism of the planer. I can just about eliminate snipe by making very light cuts on the last 3 passes.
“We should be careful to get out of an experience only the wisdom that is in it and stop there lest we be like the cat that sits down on a hot stove lid. She will never sit down on a hot stove lid again and that is well but also she will never sit down on a cold one anymore.” - Mark Twain