Trigger is no good, jarvis and VQ make new hammers for them that brings the pull down to around 3 lbs maybe a little less. You can get it at rimfiresports.com for cheaper than VQ sells thiers.
For all your 597 needs come over to rimfirecentral.com go to the remington section there are a lot of guys there that have tweaked the 597 to just about as far as you can. Alot of good info, I am there under the same name as here.
Have a good one. -Adam