This actually matters for chain printers (where you can
choose a subset
of letters that go on the print chain and get better performance), but it's
not such a big deal for dot-matrix or laser printers which tend to print
at the same speed (until something overheats, at least) no matter what.
LQP02/3 being daisy wheel and obeying the rules of inerta and acceleration
are like band printers in that some sequences will print slower (less than
max speed). The is especially true if the carriage positioning commands
are used. So speed specs used a standard text and line width so that
comparison could be made.
Allison
Allison