Sensitive or regular to start 🤔

Sonya • 🤍💜 Mom of 4 girls 🤍💜

My oldest was on regular Similac (15 years ago with no issues), my 2nd (she's 5 now) had bad reflux and was on Similac total comfort, my 3rd (4 yo) was ebf, now my 4th (due in a few months) I would like to start her on Enfamil Enspire sensitive when she's born (they do have a regular formula as well) my question is should I start her on the regular or can I just start her on the sensitive?