PH wow, they look splendid!!!!
Curiously, a greenhouse start for bulbils did not translate into earlier nor bigger rounds last year, although they were up months earlier.
They seem to need daylength factors to start bulbing (?) which doesn't happen here until late July/August. But at least in theory, a bigger plant should produce a bigger bulb. I'll be really interested in seeing your results at the lower latitude and warmer climate / earlier normal harvest date.