My understanding is that a stagger feed refers to a normal floorplate/cartridge relationship in that the cartridges are offset and feed upto the bolt ........ left/right/left/right and so forth.

A cross section view of either the front or the rear of the stack of rounds would show a staggered pattern.

With center feed you have the round centered as it approaches the bolt. I don't own one of these rifles so I can't tell you if they are all stacked vertically or if they are staggered below the bolt and just as they reach the bolt ... they center up. Someone else could answer that ..... I can't yet.

A blind magazine ...... is where there is no floor plate nor a hole for one .... hence the stock is blind if you look down into it from the top. Cartridges must be fed in from the top ...... and must be removed out the top by either firing or cycling the bolt and removing them out the ejection port.

BTW, there are no crazy questions.

A big belated welcome to the forum!

Three 44s