I just purchased a new S&W 642 38 special +p and also bought 2 boxes of Federal 125 gr HP nyclads (non +p) to try out with it but I would like to know what would be the best round to practice with ? Is there anything that duplicates the Federal nyclad round? Also the pistol came stock with boot grips and they feel pretty good in my hand but have seen the eagle secret service grips and they look good also. I would like to know everyone's experience with the two or any other grips that work well with j frames.