[Verizon Galaxy Note 3 Q&A, Help & Troubleshooting] DrPhant0m:
MultiSystem Pre-Release Questions

[MENTION=5868929]hsbadr[/MENTION] mentioned in the ROM development thread that he can't answer all questions about MultiSystem right now... but that he will open a read-only thread for MultiSystem, and address all questions when he can.

So... I'm not writing this question specifically for an immediate answer (I'm waiting patiently for release and subsequent safe installation instructions). Rather, I am writing this to sort of "cast a vote" for areas that may need attention when the questions are answered.

tl;dr version:

Are there limitations to the combinations of ROMs that can be loaded on the "stock" and "virtual" slots? Can you mix KK and LP? Like... can I keep JasmineROM 2.4.4 as my daily driver and put Lollipop on a "virtual" slot for fun? Do I still have to keep the KitKat ROM install "safe" if that's the case?

Are applications installed once for each ROM slot that has that applicaiton installed, or can I share a game across ROMs (for instance?)

hsbadr has stated there are no performance hits when installing to an external card, but I thought that internal storage memory was much faster than any microSD technology. I'm also concerned about conserving storage space.

"I've got time to burn" version:

Whether or not I install anything over JasmineROM 2.4.4 hinges directly on the flexibility of the ROMs that get installed in the "stock" slot versus all of the "virtual" slots (a la safestrap). Is there a preferred "daily driver" ROM that should be installed in the stock slot? Does it have to be a stock lollipop ROM? Can I keep 2.4.4 in the stock slot, and just show off lollipop to friends on occasion in a virtual slot? I'm hesitant to go to lollipop because I rely so heavily on xposed mods, and other root-imperative apps that do not have lollipop support yet... and may never will. Speaking of applications... if I want a specific app (1st or 3rd party... a game, for instance) to be available in every ROM I have installed across all of the slots... will it occupy space in every slot? Will the app data be separate, as well? Is there any way to "share" apps across all installations?

So... I'm just really curious if any combination of ROMs, spanning all android platforms (JB/KK/LP) are acceptable? With all the stress on keeping the stock slot to "safe mods" I'd think that would alienate my JasmineROM 2.4.4 installation, which is rife with xposed mods and SystemUI tweaks. Or... does the necessity to stay "safe" only apply to lollipop installations? If I keep 2.4.4 on the stock slot... do I still have to do all of the firmware file updates in Odin? (I presume yes)

My only other concern is for conserving space on my microSD card, and any speed deficits that my arise from it. I've got a SanDisk Ultra 128GB card, but my understanding is that the system storage memory is still much faster, else the manufacturers would just put 32GB microSDs in place of the existing memory chips. (The S6's new internal memory technology is even faster, FWIW)

Are there answers to these questions now? I have no issue waiting for the actual release... I am just trying to plan what my next move will be. Thanks!