I noticed for the last few weeks that I frequently have problems seeing the side dot makers on my Quantum-4 especially on poorly lit stages. To make matters worse The neck has no front dot markers, even worse I wear bifocals-ouch! New prescription, by the way. Is there a way to make a larger, non-permanent dot marker out of a bright colored material? Is there a non permanent tape or something that I can easily remove when I want to? Thanks, -A.P.