I will agree with others, if you want a good all around 686, go with the 4". The 6" L frames can be a little bulky and maybe not the best choice if it is going to double as your HD gun. I have two L frames now, a 3" 686 CS1 and a nickel 6" 586. The 586 shines on the range and is just downright elegant to shoot. The CS1 is a fairly compact beast. I wouldn't feel undergunned with either one, but having the right tool for the job is always a great excuse to get more tools.