Absolute Reference Using Variables In Formula

I have written some VBA code that is functional, but yields a formula that is somewhat confusing to the user.

I have two string variables called TippityTop and Anchor, both of which refer to specific cell addresses in the R1C1 style.

I attempted to define other variables that reference cells that are offset from TippityTop and Anchor without using the ActiveCell route. Try as I might, I could not produce the cell addresses that I wanted these new variables to reference.

I consulted many Excel Help screens and referred to a book on Excel VBA, but I finally took another route.

I now have:

ActiveCell.FormulaR1C1 = _
"=IF(AND(ISNA(MATCH(RC[-2],OFFSET(" & TippityTop & ",1,-2):OFFSET(" & Anchor & ",-2,-2),0)>0),ROUND(RC[-1],2)0),""DOV not in Treasury"","""")"

The problem is that this code yields this formula in Excel:

=IF(AND(ISNA(MATCH(L587,OFFSET($H$585,1,-2):OFFSET($H$798,-2,-2),0)>0),ROUND(M587,2)0),"DOV not in Treasury","")

Rather than OFFSET($H$585,1,-2):OFFSET($H$798,-2,-2), I would like the formula to say F586:F796, so that the end user can easily understand the logic.