/scid and /scon evaluate the string, so you'll also run into problems if your line contains words beginning with dollar signs or percents. For example, this shows the literal string starting with a dollar:

//echo -s $ $+ version

but if you use /scid, you'll find it evaluating the string before displaying it:

//scid $cid echo -s $ $+ version

You can also prevent evaluation like:

//scid $cid echo -s $eval( $ $+ version ,0)

or

//scid $cid echo -s $unsafe( $ $+ version )