I have about a half pound of old Hercules Blue Dot that I have been shooing in my 357 Mag Contender and 686. I really like the mid level 158gr loads with it. But am a bit concerned with some of the stories about unexpected pressure spikes, not being able to use it with 125gr bullets (?) etc. My plan is to use it up then try something else. Curious what others are using instead of Blue Dot?