I've got the same gun pictured with a 6.5" ported barrel. I love it shoots like a dream never had any problems.
What do think about the Porting?
Had the 608 8 shot .357mag, ported. Last ported handgun I will ever buy.
It started falling apart, pins coming out, sloppy lock up at about 800 rounds, scary sloppy. It was 1994-95 I hear they got better.
The next one will be the same as I still regret selling. S&W 629Classic 5inch. $650