Is it just me, or is the spacing between the letter 'f' and the following quotation marks incredibly tight in MinionPro? I am already using the loosequotes option, but as far as I can tell, that only increases the distance of the quotes from the text inside them.
Problem:

Look at the difference in spacing between Minion Pro, Computer Modern and Palatino, and also look at how much better the spacing looks between the letter 'e' and quotation marks. The spacing looks way too tight for my taste.
Assuming that I am not absolutely insane and that other people notice the issue as well, is there an easy way to fix this?
I also have sample text for all letters of the (English) alphabet followed by quotation marks, but I think the letter 'f' looks the worst.

MWE:
\documentclass{article}
\usepackage[loosequotes]{MinionPro}
\renewcommand{\ttdefault}{cmr} % Computer Modern | #yolo
\renewcommand{\sfdefault}{ppl} % Palatino | #yolo
\usepackage{parskip}
\newcommand{\sometextsingle}{Issue of `Minion Pro' font}
\newcommand{\sometextdouble}{Issue of ``Minion Pro'' font}
\begin{document}
\begin{tabular}{lll}
Minion Pro & \sometextsingle & \sometextdouble\
\texttt{Computer Modern} & \texttt{\sometextsingle} & \texttt{\sometextdouble}\
\textsf{Palatino} & \textsf{\sometextsingle} & \textsf{\sometextdouble}
\end{tabular}
\renewcommand{\sometextsingle}{Issue of the `Minion Pro' font}
\renewcommand{\sometextdouble}{Issue of the ``Minion Pro'' font}
\begin{tabular}{lll}
Minion Pro & \sometextsingle & \sometextdouble\
\texttt{Computer Modern} & \texttt{\sometextsingle} & \texttt{\sometextdouble}\
\textsf{Palatino} & \textsf{\sometextsingle} & \textsf{\sometextdouble}\
\end{tabular}
\vspace{0.5cm}
\begin{tabular}{ll}
a Minion Pro' & AMinion Pro'\
b Minion Pro' & BMinion Pro'\
c Minion Pro' & CMinion Pro'\
d Minion Pro' & DMinion Pro'\
e Minion Pro' & EMinion Pro'\
f Minion Pro' & FMinion Pro'\
g Minion Pro' & GMinion Pro'\
h Minion Pro' & HMinion Pro'\
i Minion Pro' & IMinion Pro'\
j Minion Pro' & JMinion Pro'\
k Minion Pro' & KMinion Pro'\
l Minion Pro' & LMinion Pro'\
m Minion Pro' & MMinion Pro'\
n Minion Pro' & NMinion Pro'\
o Minion Pro' & OMinion Pro'\
p Minion Pro' & PMinion Pro'\
q Minion Pro' & QMinion Pro'\
r Minion Pro' & RMinion Pro'\
s Minion Pro' & SMinion Pro'\
t Minion Pro' & TMinion Pro'\
u Minion Pro' & UMinion Pro'\
v Minion Pro' & VMinion Pro'\
w Minion Pro' & WMinion Pro'\
x Minion Pro' & XMinion Pro'\
y Minion Pro' & YMinion Pro'\
z Minion Pro' & ZMinion Pro'\
\end{tabular}
\end{document}

f 'and replace it byf\kern x.xpt'. See here about the topic of kerning adjustment: http://tex.stackexchange.com/q/10455 – LaRiFaRi Jun 18 '14 at 11:21