I would be a top feeder if I could solve a problem. Attaching the blade to bottom clamp blind is easy!
Putting the blade thru the drill hole a little harder, I can do that ( teeth point down )
But
Three times I tried top feed and failed! How do I align hole in wood with hole in table?
How do I align hole in wood with hole in table 500 times? A 1000, 10,000 and never miss it?