One thing that helped me was the "Passage Only View" on LSAC's LawHub, which makes the entire passage fit onto a single screen.

The key to RC passages is being able to understand the overall structure of the passage. This Passage Only View eliminates scrolling, so it is more similar to paper in the sense that everything is fixed in place. I think it's possible that having to scroll through the passage interferes with our ability to visualize the structure of the entire passage.

This doesn't help with your notation problem, but it could be worth giving it a shot. I intend to use this view during the real exam. Unfortunately this doesn't seem to be available when taking PrepTests directly on 7Sage.

I definitely understand your concerns - I was very worried about interruptions as well (I wrote in April). This post got kinda long as I was writing but anyway here it goes!

There is a date for retakes after each exam. I think for April the retakes are happening on April 22nd. The process for submitting a complaint seems pretty straight forward and LSAC monitors the complaints like 24/7 during the test dates. The info is on their website.

For what it's worth, I read online that something like 93% of test takers on Proctor U don't have any proctor interruptions once their test starts. A few percent receive 1 message from their proctor during the test, and an even smaller percentage have multiple interruptions. I think the issues are massively over represented on forums because people are more likely to post about a negative experience vs a positive one.

I also think that there are things you can do to be proactive and minimize the chances of being interrupted. Heading into my test I took stock of the common issues people had from reddit etc, here's what I came up with if it helps you or anyone else.

Staying in camera view. Many interruptions seem to come from peoples' faces being out of view during the test, most commonly during logic games when they are writing on their scrap paper. Before the test, set up your desk how you will on test day. Turn on your webcam and check if you remain in view when writing on your paper. If you don't, rearrange until you do, and take note of where your computer and paper are on your desk.

Room setup issues. Some people have had the following issues during room scan: proctor wants the door behind them, windows don't have blinds, backpack/bag is nearby. You can browse the April LSAT Flex thread on reddit.com/r/LSAT if you want to see what else people have run into. Try to find a place to take the test where these things won't be an issue. If you can't it's not the end of the world - I had a door right beside my desk and my proctor didn't care. But minimize the potential issues to give yourself peace of mind.

Internet connectivity. It sounds like the proctor will interrupt if your video feed cuts out, which can happen if your internet lags. Try to use a wired internet connection if possible, be close to your router, ask roommates/family to stay off the internet while you're writing the test. Internet speeds can vary depending on how many people are using the connection, what they are downloading/uploading, etc.

System requirements. Go to the Proctor U website and check the system requirements well in advance of your test. Make sure your internet is fast enough, you have enough RAM, your operating system is new enough, etc.

Glasses. This is probably less common but if you wear glasses, make sure you have them on during check-in. Some people have been interrupted because they put on glasses midway through the test, and the proctor needed to check the glasses because they weren't seen during check-in/room scan.

Talk to your proctor at the start. Before your test starts you are able to ask your proctor questions. I think most of them are pleasant, reasonable people. You can check with the proctor to make sure that they will pause the time if they need to interrupt you.

If you can be proactive about these things, I personally think the chances of having any major issues are pretty slim. There are obviously some unavoidable technical issues that people have run into, but if you do all this I think you should be fine.

Do you have an example of a question that uses "but" in this context?