If the SID requires a certain climb gradient (eg it specifies 6% to 4000'), then if I am unsure, I will check my performance book for one engine out climb performance at the take off weight (against pressure altitude and temperature) to see if I can archive the gradient if I lose an engine.
Well good luck with that.
Are you aware that your gradient diminishes in turns? So when you SID takes you in the opposite direction of departure runway, what is you gradient during the 180 deg turn which will take at least a couple of minutes?