Hi Louise,
I reviewed what I liked and didn't like about the Starkey Xino compared with the Widex Zen. It's in the post "NuEar," which begins with a video on the Xino. I would add that another quirk in the Starkey--and not in the Zen--is the tube that goes into your ear. Sometimes when my tinnitus noise is playing, it will stop and I'll have to take the tube and reposition it. I feel like the tube is an antenna that's lost it's channel, but I don't believe this is how hearing aids operate. I'll ask my audiologist.
In general, I do like the Xino, but there are design deficiencies that create unnecessary difficulties. And I am afraid of long term exposure to bluetooth. But the Zen were just so easy to operate as opposed to the manual "tapping" of the BTE piece that Xino requires. On the other hand, the Zen sounds do not agree with everyone, but Xino's white noise is very peaceful, just like a whisper. Anyway, I go into detail in that other post. Here's the link:
https://www.tinnitustalk.com/threads/nuear-tinnitus-how-it-works-video.990/#post-9850
Regarding your questions:
1) My T is quiet in the morning, even after it's spiked so I can't answer that.
2) My hearing loss is minor. My threshold is 30db across three spectrums: 4, 5, 6 hz. The loss is somewhat uniform between ears, though slightly worse in the left. But my T is only in my left ear/hemisphere. The audiologist noted I might've always had minor hearing loss at those frequencies, but when I popped my ears last summer I slightly worsened it. (My hearing aids are bilateral; apparently, this is the approved method for tinnitus since the brain communicates with both hemispheres.)
3) The Zen noise is programmable. They have many tones, and they have a white noise which is generic, though it can be adjusted from broad band to narrow band sounds. The white noise is not pleasant, in my experience, but I didn't have the audiologist work with it. She only focused on the Zen tones.
4) I had the Frequency Transposition turned on. There are at least two settings, and I had it at the lowest. (If I recall, the higher setting gives better results, according to that study we recently read.) The transposition setting makes "f" and especially "s" sound hissy, especially when you're speaking.
Starkey is competing with Widex in frequency transposition. Starkey's program is called Spectral IQ. I have the feature turned on in my Xino, but, like the Zen, it's on the lowest setting. Later, I'll crank it up, but the transposition sound requires time for acclimation. If you go for a fitting with either Widex or Starkey, repeat the phrase "Sarah sells seashells by the seashore" with the frequency transposition turned on.
Here is the Spectral IQ webpage:
http://www.spectraliq.com/
The Xino's white noise is based on your audiogram; from that profile, you are able to tailor the sounds to maximize masking or relief. I do not think the Zen tones are based on your audiogram--but I could be wrong. I will ask my audiologist Friday when I go for an adjustment.
As you know, hearing aids ameliorate tinnitus by enhancing background sounds and addressing your specific hearing deficiencies. Since my hearing deficiencies are minor, I need the hearing aid to return whatever sounds were lost when I injured my ear (hence, the frequency transposition). Enhancing background noise does not help my tinnitus. In fact, my hearing aid is on the lowest setting and I don't like it. Everything sounds too loud. (Even running the water is now loud!) But I'll get used to my new "loud" world, though I am removing the hearing aids whenever the noise cranks up--such as in restaurants, etc.
I hope this is helpful. You need a month--at least--before you know if the hearing aids are working. Since my tinnitus fluctuates so much, I'm keeping track of any spikes I have for the next 30 days. So far, I'm on day two of no spikes, though the T is slightly louder than yesterday.