Code

if (Close[0]<=Low[2]) { if (BuySeqCount < 12) { BuySeqCount++; DrawText("BuySeq"+CurrentBar, BuySeqCount.ToString(), 0, (Low[0]-(2*TickSize)), Color.Red); if (BuySeqCount == 5) { buycountdown5 = Close[0]; Print("buycountdown5 is" + Close[0]); } if (BuySeqCount == 8) { buycountdown8 = Close[0]; Print("buycountdown8 is" + Close[0].ToString()); } } elseif (BuySeqCount == 12) { if ((Low[0] <= buycountdown8)) { Print("Low[0] is" + Low[0]); Print("buycountdown8 is" + Close[0]); BuySeqCount++; DrawText("BuySeq"+CurrentBar, BuySeqCount.ToString(), 0, (Low[0]-(2*TickSize)), Color.Red); flagBS9 = false; SequentialCountdownInProgress = false; BuySeqCount = 0; } else { DrawText("BuySeq"+CurrentBar, "+", 0, (Low[0]-(2*TickSize)), Color.Red); } }

I want to compare the 8th count vs the 5th count and the 13th count vs the 8th count.
Problem No.1: My private double values changes.
Problem No.2: Not sure how to code the 8th vs 5th

Quoting 

I want to compare the 8th count vs the 5th count and the 13th count vs the 8th count. Problem No.1: My private double values changes. Problem No.2: Not sure how to code the 8th vs 5th

your codes will get more complicate as you compare more and more variables
the best practice is to save those values into an array, due to Ninja programming (think of it a perm loop for each new bar added it will start back from bar #1 again) the values stored in the array will be shifted but they are in there you just have to know which is which.

// declare an array in #region Variables

private double[] arrayGap = new double[13000];
....
// example to store value into an array
// do gap storing into an array

 

Code

arrayGap[Cnt] = Instrument.MasterInstrument.Round2TickSize(Open[0] - Close[0]);

// use print to debug
// Print(" current open "+Open[0]+ " prior close " + gapLast);

good luck.

Thanks Cory! Feels like it's back to the drawing board for now!