r/r for scalps is not cut and dry.
for example, i could go for what i think is a high % scalp with 1/4 size, and it fails but i also
believe that the failure will not materialize into a trend for a reason so i'll average in
go for break even on the initial scalp and profit on the average. or as new bars print
and i get more info i could go full size in the initial scalp direction as the failure goes back in the favorable direction and scale out at some s/r level.. bottom line is since the market is dynamic your decisions are
also.