RMAN Clone NOARCHIVELOG

I am using Oracle 10.2.0.4 with RMAN to clone a database from an RMAN
cold database backup. Both databases are in noarchivelog. I am using
an Rman catalog with TDPO.

The database I am cloning from is from a previous cold backup.
I am using the following paramters in the init.ora of the clone.

db_file_name_convert=
log_file_name_convert=

My duplicate code is as follows :-

connect target xxx@xxxx
connect auxiliary sys
startup clone nomount;
set until scn=xxxxx;
duplicate target database to xxx;

My question is will this work as both databases are in noarchivelog
and the backup was a cold backup?
The SCN I am supplying is the controlfile scn used in the cold backup.

Any help would be much appreciated.