Yeah, you're right. Woman said the same and it's true. I'll go with a standard saddle and try to make a channel in it.
Flooring and frame are oak. I don't have a router unfortunately, or that dish cutter would be perfect for this.
I rent.
I may buy the Home Depot one I saw and see if I can cut the channel by hand. If it doesn't work, it's little money wasted, no biggie.