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There is no "ideal" carry length to a green on a driveable par 4(or par 3 for that matter).It will be too long a carry for nearly all, and too short for some.and those that can carry it, may not be able to stop it.
FWIW, I have long believed that since nearly every old course I have played featured a par three that required the better players of the day to hit driver or brassie, serious courses of today ought to as well. I'm looking forward to seeing #11 at LACC played at full length.
Sounds like the play would be a low slinging cut that scoots its way up to or near the green. I'm not sure it's considered "drivable for the majority" if it's something like 270-290+ all carry with trouble long and short.