Check to see if you have iPad and iPhone both connected or trying to connect. I had this same problem and when I disabled blue tooth on the iPad the iPhone connected and was solid from there on. Have 8000BTi.
I use the clarity sv. Works good! Needs the sunshade with solar fan on hot days. Battery has at least 6 hrs . I like the alt/speed readout with airplane symbol showing direction
Henderson is no problem vfr. Call approach outside Jean under 8000 and tell them your intent. Be aware that Sometimes they forget to hand you off until your very close, so if it's starting to look like that give them a call and ask to switch over.
I have a horizon in my Husky and a EI in my Bonanza. Now that the Husky has 1300 hrs on it my guess would be it only has about 1150 or so . I prefer the EI tach. All the old analog models I had were always off. The one I replaced the EI with was off 100 rpm.
I've owned 10 airplanes in the last 40 years starting with a 172. One trip to Truckee convinced me that it was not enough airplane. A 182 would be a great choice. If I were looking for one in your price range, in your location, I would look for one of the converted PPonks with the 520 engine...