u/Free_Theory2595

Has anyone compared K ultra against ZP6 or C40 for soup ?

I currently use the Q air and was looking for an upgrade.

I mainly brew AeroPress and OXO Rapid Brewer, and might get a V60 later. I don't do espresso and have no plans to.

I mostly drink Indian origin coffees, from medium light to medium dark depending on my mood. I enjoy both clarity and heavier chocolatey cups.

I'm leaning toward ZP6 since I can use my Q Air when I want more body. I know ZP6 can produce very tea like cups, while K Ultra would be more versatile, but having Q Air + K Ultra feels somewhat redundant.

They are similarly priced in my region.

Which would you choose for my use case?

I currently own a Q Air heptagonal which I bought recently. I love brewing medium light roasts on Aeropress and also love occasional soup from my ORB.

From what I have heard ZP6 would be better suited for medium light roasts but I wonder would I be able to notice the difference in Aeropress/ORB compared to Q air.

If not ZP6 or K ultra then any cheaper alternatives which could up my game?

I'm planning to apply to Materials Science and Engineering PhD programs in the US for Fall 2027 as an international applicant.

I have research experience in corrosion, electrochemistry, materials degradation, and additive manufacturing, So far, I have made a list of around 30-35 professors in this field.

A few questions I was hoping current PhD students and faculty could help with:

1. For Fall 2027 admissions, when do professors typically know whether they'll have funding available for new PhD students?
2. Is June or July 2026 a reasonable time to start reaching out to professors, or is that too early?
3. When emailing faculty, is it better to simply introduce yourself, discuss research fit and share CV, or is it acceptable to directly ask whether they expect to take new students?
4. Most importantly, how specific were your research interests when you applied? I know the broad areas that interest me, but I don't yet have a very narrow research topic in mind.

I'd appreciate any advice, especially from people in materials science, corrosion, or related fields.