4.) you say premils don’t believe Christians are currently reigning. I’m unsure of this position. Let’s ask a premil @DavidPT
1.) do you believe Christians reign in a spiritual sense presently? In other words, do christians presently reign over sin and through the spreading of the gospel?
2.) according to premil, do Christians presently reign in same magnitude as Christ does. In other words, are Christians able to call themselves co rulers of the king of the earth with authority over nations? 
		
		
	 
As to 1.), I agree, if understanding it like that, but that is not the same as reigning with Christ a thousand years.
As to 2.), the answer would be no to that. There are no Christians that have authority over nations, in any sense.
Here's something I asked in another thread. Is 'reigning over' and 'reigning with' meaning the same thing, in regards to Christ and believers?
Luke 19:27 But those mine enemies, which would not that I should reign over them, bring hither, and slay them before me.
This was meaning while He was away. This says----But those mine enemies, which would not that I should reign over them. What would the opposite of that be since it isn't meaning everyone would not that He should reign over them? Wouldn't the opposite of that be that some would He should reign over them?
If so this would mean Christ is reigning over believers while He is away, as long as they allow Him to.
Revelation 20:4 And I saw thrones, and they sat upon them, and judgment was given unto them: and I saw the souls of them that were beheaded for the witness of Jesus, and for the word of God, and which had not worshipped the beast, neither his image, neither had received his mark upon their foreheads, or in their hands; and they lived and reigned with Christ a thousand years.
5 But the rest of the dead lived not again until the thousand years were finished. This is the first resurrection.
6 Blessed and holy is he that hath part in the first resurrection: on such the second death hath no power, but they shall be priests of God and of Christ, and shall reign with him a thousand years.
In regards to reigning, these verses say one reigns with Christ and not He reigns over them. 
Unless reigning over and reigning with mean the exact same thing, I'm left thinking that because some have allowed Christ to reign over them while He is away, He then rewards them with reigning with Him when He returns.
But then there is the following.
2 Timothy 2:12 If we suffer, we shall also reign with him: if we deny him, he also will deny us:
IMO, endure would be a better word to use than suffer---If we endure, we shall also reign with him: if we deny him, he also will deny us
Amils interpret this differently than I do. I take it to mean the following. If we endure while He is away, we shall also reign with him when He returns: if we deny Him while He is away, he also will deny us when He returns
The way most Amils apparently interpret this verse, at least the ones in the Once Saved Always Saved camp, it doesn't matter if one endures or not, they still reign with Him, regardless. Where I come from 'if' is something that is conditional. Look at the last part of that verse as well. Would anyone suggest, that if we deny Him, He won't deny us in return? Shouldn't the same be true per the former part of that verse, that if one doesn't endure, neither shall they also reign with Him?
Revelation 20:6 Blessed and holy is he that hath part in the first resurrection: on such the second death hath no power, but they shall be priests of God and of Christ, and shall reign with him a thousand years.
Since some believers might not endure, and that some believers might even deny Him at some point, it doesn't make sense to apply this to anyone until after they have endured first. It is impossible that once one has part in the first resurrection that they can lose part in it somehow. That's exactly what happens per Amil if one doesn't endure. This means they lose part in the first resurrection, which is ludicrous. This couldn't possibly happen per Premil, though. The first resurrection is being applied to someone after they have endured, and not before they have endured or are in the process of enduring.