Hi Haydn, any small change feels massive at the start but will become comfortable over time. Let the sound be the judge and the use the #POD Point of Difference then to discern whether you are overdoing it physically. Embrace the difference in feeling. As you get your harmonic slurs developing using the PPC’s with a good sound and with the free feeling of singing, everything will fall into place.
Keep experimenting with an open mind.
Cheers,
Greg