Discovery sessions question

I’m a health coach and over the past year made around 100 discovery sessions which I loved doing and resulted in successful signups of around 15 clients which I’m happy with.  Now I’m planning to ramp up the number of signups which will mean less time available for discovery sessions, so I’m planning to host weekly webinars instead.  I just want to know your views on this approach just to know the pros and cons to help me decide.