When I make buttercream I use crisco, i dont want to use high ratio. I use Indydebi's and sugarshacks 4.5 qt recipes. My bc is usually shineylooking almost like a curdle-airy look, or dry. BC rose petals aren't smooth edges, and cant seem to find a good smooth texture, like it shows in SS's video, ever. BTW, I live in the desert, when I start to pipe the begining piping looks firmer than the end. I'm guessing the bc gets warm from my hand. I hate to stop piping in the middle esp. after i get a rythm going...it always hard to pick back up with out breaks.
Any suggestions? TY

as far as the bc getting too warm from your hand you could always fill 2 bags and keep one in the fridge and just swap them out as you go along, and they start to get too soft.

when i make bc frosting i use half butter and half regular crisco never a prob. but u might try to put bag down every five mins or so and hold an ice bag for a few