How to make \textsc look good in a section title in ACM documents?

Question

Q: How can I suitably use \textsc in a section title in ACM documents?

I'm wanting to use \textsc in a section title in an ACM document, but it looks poor. Here's a "Lorem ipsum" version:

If I attempt to fix it using \textbf{\textsc{...}} or \textsc{\textbf{...}} it still doesn't look particularly appealing, and even gets rid of the small caps in subsections:

The .cls file is available here, and here's my LaTeX file:

\documentclass{acm_proc_article-sp}

\begin{document}

\section{Lorem \textsc{ipsum}}

\subsection{Lorem ipsum \textsc{dolor} sit \textsc{Amet}}

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Maecenas congue nisi justo, sed volutpat est convallis a. Aenean ultrices sed est quis tempor. Pellentesque eget iaculis risus. Nullam et lacus a justo interdum interdum at in neque. Phasellus eget lectus vitae purus posuere pellentesque. Phasellus ut fringilla lectus. Fusce maximus leo accumsan lorem posuere tempus. 

\end{document}

Answer 1

This is how the class defines the fonts for the various parts of the document:

\newfont{\secfnt}{ptmb8t at 12pt}
\newfont{\secit}{ptmbi8t at 12pt}    %13 Jan 00 gkmt
\newfont{\subsecfnt}{ptmri8t at 11pt}
\newfont{\subsecit}{ptmbi8t at 11pt}  % 
\newfont{\ttlfnt}{phvb8t at 18pt}
\newfont{\ttlit}{phvbo8t at 18pt}    % GM 2/4/2000
\newfont{\subttlfnt}{phvr8t at 14pt}
\newfont{\subttlit}{phvro8t at 14pt} % GM 2/4/2000
\newfont{\subttlbf}{phvb8t at 14pt}  % 13 Jan 00 gkmt
\newfont{\aufnt}{phvr8t at 12pt}
\newfont{\auit}{phvro8t at 12pt}     % GM 2/4/2000
\newfont{\affaddr}{phvr8t at 10pt}
\newfont{\affaddrit}{phvro8t at 10pt} % GM 2/4/2000
\newfont{\eaddfnt}{phvr8t at 12pt}
\newfont{\ixpt}{ptmr8t at 9pt}
\newfont{\confname}{ptmri8t at 8pt}
\newfont{\crnotice}{ptmr8t at 8pt}
\newfont{\ninept}{ptmr8t at 9pt}

This is so wrong that I apologize for showing this code in a place accessible also to young or sensitive audience. ;-)

You could fix this shameful code:

\documentclass{acm_proc_article-sp}

\usepackage{tgtermes}
\usepackage[scale=.9]{tgheros}

\renewcommand{\secfnt}{\bfseries\large}
\renewcommand{\secit}{\bfseries\itshape\large}
\renewcommand{\subsecfnt}{\itshape\large}
\renewcommand{\subsecit}{\bfseries\itshape\large}
\renewcommand{\ttlfnt}{\sffamily\bfseries\LARGE}
\renewcommand{\ttlit}{\sffamily\bfseries\slshape\LARGE}
\renewcommand{\subttlfnt}{\sffamily\Large}
\renewcommand{\subttlit}{\sffamily\slshape\Large}
\renewcommand{\subttlbf}{\sffamily\bfseries\Large}
\renewcommand{\aufnt}{\sffamily\large}
\renewcommand{\auit}{\sffamily\slshape\large}
\renewcommand{\affaddr}{\sffamily}
\renewcommand{\affaddrit}{\sffamily\slshape}
\renewcommand{\eaddfnt}{\sffamily\large}
\renewcommand{\ixpt}{\small}
\renewcommand{\confname}{\itshape\scriptsize}
\renewcommand{\crnotice}{\scriptsize}
\renewcommand{\ninept}{\small}

\begin{document}

\section{Lorem \textsc{ipsum}}

\subsection{Lorem ipsum \textsc{dolor} sit \textsc{Amet}}

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Maecenas congue nisi justo, sed 
volutpat est convallis a. Aenean ultrices sed est quis tempor. Pellentesque eget iaculis 
risus. Nullam et lacus a justo interdum interdum at in neque. Phasellus eget lectus vitae 
purus posuere pellentesque. Phasellus ut fringilla lectus. Fusce maximus leo accumsan lorem 
posuere tempus.

\end{document}

However, I don't think that the people in charge of receiving manuscripts for the conference will be happy with this.