WRT igntion cut:
If it is simply the kind where the spark is cut to all the cylinders, that means the same amount of fuel and air is being added for the duration of shift, which means on the exhaust part of the cycle will dump nice, cool air and fuel straight into a nice hot exhaust manifold...
bruuuuummmmmmmmmmmmm BANG burbleburblepop bruuuuuuuuuuuuuuuuuuuuuuummmmmmmmmmmmmmmmmmmmmmmmmmm
grin.