Modifying standard DTT scripts to use -c instead of $1

There are lots of great dtrace programs out there and some of them require a PID to be passed to them, in order for them to trace that PID. Inside the dtrace scripts that argument is stored in $1. Is it possible to just simply replace $1 with $target and -c on the cmdline, and rest of the script logic remains the same? Is it just as simple as I think it should be?