Set spacing of ToC entries for custom "sections"

Question

based on this post I was able to customize the appearence of my table of contents. I am very pleased with the result exept for one small detail: The spacing between the ToC-entries.

I would like the entries to be closer together. A solution for standard chapters/parts etc. is something like \setlength{\cftbeforeXskip} (probably more like \cftafterXskip, to keep the spacing to previous entries?), but I don't quite understand how to apply this command to the new sectionstyle (chapterstar).

Thank you for your help!

MWE:

\documentclass[12pt,a4paper,ngerman]{scrbook}

\usepackage[titles]{tocloft}
\usepackage{etoolbox}
\makeatletter
\let\l@chapterstar\l@chapter
% \patchcmd{<cmd>}{<search>}{<replace>}{<success>}{<failure>}
\patchcmd{\l@chapterstar}{\cftchapfont}{\cftchapstarfont}{}{}% Insert starred chapter font
\patchcmd{\l@chapterstar}{#2}{\cftchapstarpagefont #2}{}{}% Insert starred chapter page number font

\makeatother
\newcommand{\cftchapstarfont}{\cftchapfont\normalsize}
\newcommand{\cftchapstarpagefont}{\cftsecpagefont\normalsize}

%%%%%%%%%%%%%%%%%%%%% START BODY
\begin{document}
\tableofcontents

\chapter{Full Chapter 1}
\section{Section 1}
\section{Section 2}
\chapter{Full Chapter 2}

\addcontentsline{toc}{chapterstar}{StarChap1}
\chapter*{StarChap1}

\addcontentsline{toc}{chapterstar}{StarChap2}
\chapter*{StarChap2}

\end{document}

Edit: Thank you for improving the post, I thought I was posting within the specific Latex Stack-exchange.

Edit 2: I have updated the code (and image) to be a little more complex. As I have normal parts, chapters and subsections in my original document, but I just want to decrese the distance for the chapterstar entries, while keeping the other distances (such as the blue boxes) unchanged.

Answer 1

\setlength{\cftbeforechapskip}{.1ex} seems to also work for your custom chapters:

\documentclass[12pt,a4paper,ngerman]{scrbook}

\usepackage[titles]{tocloft}
\usepackage{etoolbox}
\makeatletter
\let\l@chapterstar\l@chapter
% \patchcmd{<cmd>}{<search>}{<replace>}{<success>}{<failure>}
\patchcmd{\l@chapterstar}{\cftchapfont}{\cftchapstarfont}{}{}% Insert starred chapter font
\patchcmd{\l@chapterstar}{#2}{\cftchapstarpagefont #2}{}{}% Insert starred chapter page number font

\apptocmd{\l@chapterstar}{\setlength{\cftbeforechapskip}{.1ex}}{}{}

\makeatother
\newcommand{\cftchapstarfont}{\cftchapfont\normalsize}
\newcommand{\cftchapstarpagefont}{\cftsecpagefont\normalsize}

%%%%%%%%%%%%%%%%%%%%% START BODY
\begin{document}
\tableofcontents

\chapter{Full Chapter 1}
\section{Section 1}
\section{Section 2}
\chapter{Full Chapter 2}

\addcontentsline{toc}{chapterstar}{StarChap1}
\chapter*{StarChap1}

\addcontentsline{toc}{chapterstar}{StarChap2}
\chapter*{StarChap2}

\end{document}