/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 )