I have a joiner (basically a reverse splitter), the two lines come into the joiner, then the amplifier outside, then that line comes into my house. Way cheaper than a rotor. As for signal loss I have no idea. Toronto stations are all at near or at 100%. But as I said, you are getting a few that I don't.
I got this all going in mid to late December so I guess maybe I need to wait until the Summer to see any difference, good or bad

. Hopefully I can get a little more than now.
No complaints at all so far, between this and $8 a month for Netflix, everyone in my house is quite happy and I couldn't be happier with the monthly bill. Top that with no cost for my home phone, and my Internet is my only other expense ($45 a month for what used to be over $200 with Rogers).
Happy camper!