I use the blot powder as well, and I use the 134 or the 136, and sometimes even the 182 if that's all I've brought in my purse. You can use any powder brush for the blot powder.
Just remember to try not to use the powder pad thingys that come with the powders, because lots of bacteria builds up on them and its really hard on your skin, especially if you are re-applying multiple times in a day.
I dropped my blot powder a few weeks ago and it shattered
I need to get a new one a.s.a.p!