Watch ten call recordings before you argue about a form field
With brokerage level volume, listening beats testing, and it produces answers faster than any experiment you could run.
Split testing needs sample. A firm taking a modest number of inquiries a week will wait a long time for a result that clears noise, and by then the market has moved.
Recorded calls, with consent and handled according to whatever your counsel advises about recording in each state, tell you in an afternoon what a three month test would have guessed at. You hear the question everybody asks. You hear where the caller hesitates. You hear the broker promising to send something that never got sent.
Do the same with the email threads. Pull the last twenty inquiries that went cold and read them end to end. The pattern is usually embarrassing and cheap to fix.
Save the testing for things large enough to see. Changing an entire intake process is measurable. Moving a button is not.