Zenith Aircraft's 'chief pilot" recommends immediately lifting the nose wheel on the experimental CH701 and CH750 models "and the aircraft will fly right off by itself". However both these STOL aircraft have fixed leading edge slats and we are talking about a five second time window. There are numerous Youtube videos of this Zenith takeoff technique.
BUT, thank you Centaurus for your considered advice. The only time my stall warning is ever triggered is on takeoff - for a fraction of a second after I indeed lift the nose wheel. I never thought of it until now but a gusty left crosswind sounds like a very good reason to hesitate for a second before lifting the nose.