I could imagine skip[0] being quite efficient. I doubt any native speaker would use it, though. I have used multiple radical lookup systems before, and they are not in any way efficient. I don't speak Chinese, but I do a fair bit of writing in Japanese and phonetic input is very, very quick (especially with context sensitive completion).

[0] - https://en.wikipedia.org/wiki/Kodansha_Kanji_Learner%27s_Dic...