aaron_aa469
People will tell you that they are both good powders and people will have a feeling more for one than the other.
I have tried most of the different Pyros and I by far prefer T7 to any of them. It is cleaner and grain for grain more powerful - BUT T7 is harder to ignite and the 'crud ring' fouling turns a lot of people off to it. and the most important part for me T7 is far less corrosive.