Yes, the 1520 is also very similar to the Ativ SE, and both will work fine for updating to TH2 or RS1. The only reason I prefer and suggest using the values for the Icon is the (very slim) possibility of Verizon releasing provisioning updates in the background. Since the 1520 is not a Verizon device, any device with values matching the 1520 would not get the hypothetical update (unless the update is SIM-dependent; I'm unaware of the methodology of deployment). In regard to the comment on expandable storage, the cabs that we get for updates contain unpacking instructions and a unique configuration is made for every device based on its characteristics (like an installer for a desktop application). If there are registry entries for SD storage, the phone will support it regardless of the DeviceTargetingInfo values. Good question, though!
Awesome idea! I realize my new tutorial could be confusing for someone who is only interested in TH2, so it certainly makes sense to have a dedicated, concise tutorial for it. If I were starting fresh and going to TH2, I would follow my new tutorial through step 13. The only reason I would suggest resetting from 107 instead of a more recent build is because 107 is the RTM release, and for all versions of Windows NT they have suggested starting with a base install and updating through official channels afterwards. I have no research that shows it would be better to restart from RTM on the mobile builds, but it has worked for me. I haven't tested this myself, but I think the Ativ SE (or any device) can get TH2 updates on the Release Preview ring using the stock values once it is on 10586.107. If this is true, users wouldn't need to make any modifications beyond downloading Windows Insider before getting the updated builds. Unfortunately I do not have the time this weekend to do the entire process from scratch, so somebody else will need to confirm that. If that is not true, I would follow my new tutorial to the end, but select Release Preview at step 20 instead of Fast. It may also be nice for complete beginners if you included all the files in the post itself (like asellite did for this thread) instead of linking to the original sources (like I did). The original source threads are ideal in the event that important information is released and the tutorial post doesn't reflect that, however most beginners will not do any research beyond what is in the tutorial anyway (which is why asellite's tutorial was more popular than my original win10 tutorial, and rightfully so). For complete beginners, I think asellite's tutorial was very verbose, which is exactly what they need. If I were to make a new guide explicitly for TH2, I would include the information in my RS1 tutorial (with the changes I've mentioned in this reply) but format it like asellite did and include all the extra info that he has included (like providing and explaining how to use the registration/deployment utilities). I'm sorry that this wall of text was so hard to read xD