I am always a bit suspicious towards variants where low-valued pieces are able to protect each other. In this case it might not be so bad, though, because the 4 extra captures probably drive up the value of this enhanced Pawn to around 2. So two Pawns protecting each other can still be threatened by a minor with backup, which can then sacrifice itself for the Pawns without incurring a loss.
I also don't understand the variant's name. Giving a piece some extra backward moves does not strike me as very progressive. The term 'retro' seems more applicable.
What you call 'lines' is usually referred to as 'files'.
What does it mean: "is obsolete"? If you mean "not allowed in this variant", then better say it. Because there are plenty of people that wouldn't see any harm in doing obsolete things...
I am always a bit suspicious towards variants where low-valued pieces are able to protect each other. In this case it might not be so bad, though, because the 4 extra captures probably drive up the value of this enhanced Pawn to around 2. So two Pawns protecting each other can still be threatened by a minor with backup, which can then sacrifice itself for the Pawns without incurring a loss.
I also don't understand the variant's name. Giving a piece some extra backward moves does not strike me as very progressive. The term 'retro' seems more applicable.
What you call 'lines' is usually referred to as 'files'.
What does it mean: "is obsolete"? If you mean "not allowed in this variant", then better say it. Because there are plenty of people that wouldn't see any harm in doing obsolete things...