True, but then you are not doing better than iruy anyhow.
incorrect. All the poskim I've spoken to have said that libun kal of yad soledes suffices even for the Maharshal davar gush. In fact R' Shlomo Zalman held.that if you have a irui kli rishon AL ha'aish (as oppose to standard irui) also suffices for davar gush.