Your red dot finder and main scope need to point to the same place. The polar scope needs to be aligned to the RA axis of the mount. In practice you get your polar scope aligned then get the scope and red dot pointed as near as possible to the same axis as the RA.
Since you cannot see Polaris a polar scope will do you little use.
If you move the mount to where Polaris is visible, you can use the polar scope. In my view, sharpcap or a polemaster is superior, at least as far as the learning curve is concerned.
Wes, Southport NC
PMC-8, ES ED 127, 10" LX200GPS, Astro-Tech 8" Newt, ETX-90
Polemaster, Orion ST-80 and SAG
Electrical Engineer, Retired