Last night I logged my 25th session since February, but I'm not sure I've had a more pleasant experience star hopping since I started than when I went out last night with a brand new Orion 9x50 RACI on my 6 SE. I always enjoy my sessions, but too often over the past three months with the 6 SE I've found myself muttering, "Where the (heck) am I?". The RDF that came with it was very poor and impossible to align without a shim. I fixed that thanks to posts here by those who had the same problem with it as I did. Once shimmed and capable of aligning with the scope, that did me for a while, but when Orion and Canis Major were out of the FOV of my balcony, I found myself struggling to find enough bright stars to navigate the constellations in my FOV. Binoculars helped me get a sense of the stars in the field, but it was less than ideal. After a couple of frustrating sessions, I went out and got a 6x30 RACI. That was a major difference. My back and neck where very happy, and I could see and get to many stars and areas of constellations I was interested in.
Yet it didn't take me long to realize that even the 6x30 was a mismatch for the 6 SE in my light polluted sky. I still found myself muttering the same "Where am I?" question (though not as often) on nights when transparency was poor and even stars as bright as 3.5 were a struggle to see with my naked eyes. That meant less stars in the finder. What's more, even if I landed on a star that was in the finder, the field was reversed and the dimmer stars were not in the finder, and though seen in the eyepiece, they were reversed and didn't match what I saw in my atlas or Stellarium. I was often confused.
By last week I said that's enough! Time to get a 9x50 RACI. What a difference! The field is wide enough and it gathers enough light that I can see pretty much what I can see in my 10x50 binoculars, which is all I need. I don't think I uttered the "Where am I?" question once last night. I was always able to quickly figure out where I was and know where I was going. I don't use Goto except when I want to track an object, but it was immediately apparent to me that if you live in heavily light polluted skies a 9x50 finder will be a great help with alignment since it's hard to get enough bright stars to align with for many of us with narrower fields of view.
So my beginners lesson? Make sure you get the finder that matches your scope and your sky. A 6x30 isn't useless, but its limitations will be quickly revealed in Bortle 9 skies in a 6 inch or greater scope. If I could do it all over again, I wouldn't have wasted any time getting a 9x50 finder when I got the 6 SE. Then again, I wouldn't have known what I know now. I guess I like learning things the hard way. ;-)
Oh, and the 6x30 finder? Well, it's on my Celestron/Vixen FS 80, where it's a good match for the aperture.