Vertical centering of multirowcell text when specifying other column widths

I have tables where I am trying to use two features together:

1. multirowcell (from the makecell package) for cells that span multiple rows with new lines inserted into the text in specific locations, and
2. specifying a fixed width for one or more other columns where I want the text to wrap (and to better control the overall table width).

When using these features together, I would like the text in the multirowcells to be vertically centered.

When using default table column types, makecell will vertically center the multirowcell text automatically. Table 1 in the MWE illustrates this behavior.

If a column type that allows for specifying the width of a column is used, even for a column in the table that does not use multirowcell, Table 2 in the MWE shows that makecell won’t successfully vertically center the text in the multirowcells. In this example I’ve used a custom column type, but the same problem occurs when using, e.g., p{}.

Is there a way to help makecell vertically center the text when another column in the table has a specified width that causes the text in that column to wrap?

I tried using Gape[][]{}, but even a large negative value for the depth correction will not vertically center the text. Inserting a vspace{} above the text in the affected cells does work, but it requires guess-and-check approximation of the correct adjustment length for each affected cell. A solution that doesn’t require specifying absolute length corrections would be ideal since I have several tables with different configurations that are affected.

documentclass{article}
usepackage{makecell}
usepackage{multirow}

usepackage{array}
newcolumntype{C}[1]{>{centeringarraybackslash}m{#1}}

begin{document}

Table 1

begin{tabular}{|c|c|c|}
    hline
    Column A & Column B & Column C 
    hline
    multirowcell{4}{Some SomewhatLengthy Textin a multirowcell} & Table Text & lorem ipsum dolor sit amet consectetur 
    cline{2-3}
    & multirowcell{2}{A multirowcellMore text} & adipiscing elit sed do elusmod tempur 
    cline{3-3}
    & & incididunt ut labore et dolore magna aliqua 
    cline{2-3}
    & Something & Whatever 
    hline
end{tabular}

Table 2

begin{tabular}{|c|c|C{1.2in}|}
    hline
    Column A & Column B & Column C 
    hline
    multirowcell{4}{Some SomewhatLengthy Textin a multirowcell} & Table Text & lorem ipsum dolor sit amet consectetur 
    cline{2-3}
    & multirowcell{2}{A multirowcellMore text} & adipiscing elit sed do elusmod tempur 
    cline{3-3}
    & & incididunt ut labore et dolore magna aliqua 
    cline{2-3}
    & Something & Whatever 
    hline
end{tabular}

end{document}

begin{tabular}{|c|c|C{1.2in}|}
    hline
    Column A & Column B & Column C 
    hline
    multirowcell{7}{Some SomewhatLengthy Textin a multirowcell} & Table Text & lorem ipsum dolor sit amet consectetur 
    cline{2-3}
    & multirowcell{2}{A multirowcellMore text} & adipiscing elit sed do elusmod tempur 
    cline{3-3}
    & & incididunt ut labore et dolore magna aliqua 
    cline{2-3}
    & Something & Whatever 
    hline
end{tabular}

documentclass{article}
usepackage{makecell}
usepackage{nicematrix}
usepackage{array}
newcolumntype{C}[1]{>{centeringarraybackslash}m{#1}}

begin{document}

NiceMatrixOptions{cell-space-top-limit=1mm,cell-space-bottom-limit=1mm}


begin{NiceTabular}{wc{1in}wc{1in}C{1.2in}}[hvlines]
    Column A & Column B & Column C 
    Block{4-1}{makecell{Some SomewhatLengthy Text in a multirowcell}} & Table Text & lorem ipsum dolor sit amet consectetur 
    & Block{2-1}{makecell{A multirowcellMore text}} & adipiscing elit sed do elusmod tempur 
    & & incididunt ut labore et dolore magna aliqua 
    & Something & Whatever 
end{NiceTabular}
end{document}