Exactly what I do.
Originally Posted by NedL
I also let the enlarger lamp warm up a bit before beginning exposure (halogen lamps in a dichroic head) or use a stabilizer (cold-light). With dichroic heads I hold a card below the lens, switch on the timer/metronome and count off 5 or 10 seconds before beginning my test strip or exposure to at least get the initial warm-up phase behind me before I start the exposure. This I do every time, so any further variance is fairly consistent.
FWIW, I can't imagine trying to dodge using Fred Picker's series of 3-second bursts... I like a continuous exposure.
When using a cold-light head before I had a stabilizer I simply left the thing on for the entire printing session, covering the lens with a cap between exposures so that light stability was not an issue. I only burned out one tube in 10+ years that way.