I'm starting with AP, and PA is giving me a really hard time.

I'm using an iOptron Skyhunter mount and ASIAIR Plus with the new ASPA routine, since I can barely see Sigma Octantis from my backyard, is right besides my neighbour's roof. I never managed to get < 4' errors, according to the ASIAIR, and it is increasingly frustrating, even the slightest movement throws off all numbers.

Then I decided to try the SharpCap PA routine, even with the partial sight of Sigma Octantis and friends, I was able to start the routine and after ~10 minutes I managed to get < 1' error, and I have done it two days in a row now.

So I wonder if the ASIAIR routine is the problem, or my clumsy hands, with the PA I got from SharpCap now I'm able to take 5 min subs, with slightly elongated stars, which brings me to the other questions, guiding.
I tried to configure guiding with the ASIAIR and it results in the image moving diagonally, no matter which parameters I use. I'm using a WO uniguide 50/200mm scope with ASI120MM Mini as the guiding camera. My next experiment will be to use SharpCap for the pictures and PHD2 for guiding, but I wonder if someone with a similar setup can provide some advice, most of the stuff I've found online revolves around bad focusing, and conflicting advice.

Thanks a lot in advance!