Parsaregood
Head Pro
Most people I know scratch golfers included don't even practice never mind hit balls on a range before playing. I know 2 guys who are decent, ones played off between scratch and plus 2 for 20 years and the other is consistently a scratch player, both play 2 or 3 qualifiers a week and never practice because it's boring in their eyes.If there is a range, 40-50 balls .
Starting with half swing with PW 3-5 Balls
3/4 Swing with PW 3-5 Balls
Full swing with PW 3-5 Balls
Then full swing 3-5 Balls with 8, then 6, then 4, then hybrid, 3 wood and driver
A few minutes chipping and putting
Done.
Personally I do like to hit 15 20 balls then have a chip and putt but likewise have gone out without hitting even a putt and shot 6 under, so as long as your not a completely stiff cripple I'm not sure it's that much of a deal breaker. Whatever makes you feel best is what you should do.