Oh, I can tell you why you don't use Ogust: you have strict requirements on suit quality, even NV. (Note, they don't have to be *good*, just strict. "NV 1st seat, I won't have AQxxxx or better" is a perfectly fine agreement (if not necessarily optimal)...
Traditional requests are "assume partner has suit quality, ask about other features of the hand":
- Do you have a feature (and a good suit)? If it's a useful feature, then partner will know there's an entry and can count on running the suit for 1 loser and picking up 4 other tricks in 3NT.
- Do you have shortness somewhere? If yes, and it covers my losers, we can make game in your suit; if not, let's stop in 3.
Some play both of these (2NT feature, 3
♣ shortness).
In one of my partnerships, we play Feature, and "3NT says 'yes'." This avoids telling the opponents what suit the feature is in (a good strategy is to attack it on the opening lead, in case you can remove it before the "1-loser") at the cost of declarer not knowing where it is (to avoid "it's attackable OL" before bidding 3NT).
One I have seen promoted recently is "Easy Ogust" - score your hand 1-4, and bid accordingly. Don't have to worry about "does QJx AJTxxx count as a good hand? a good suit? Is it 'medium both, equivalent to good one, but which one?' " - it's just a 3 and go from there.
Similarly, one teacher out here likes "good 5, any 6, bad 7" openers. So the most important "extra thing" to know about is "are you on 5?" So 3
♣ is "5, 9-11, decent suit", and then 1-3 for the 6 carders (okay, 7s too. But they're *bad* 7-card suits, so they're hopefully useful 6s.)
But the key is, what are you willing to lose? Preempts are a gamble, and there are some hands you will lose on. Are you afraid of missing game? No matter how you ask, you'll have to pass some of those real garbage suits, even NV, so partner doesn't worry (or doesn't worry and bids a no-play game). But you'll lose to those opening them on the hands where you're preempting the opponents. Of course, you'll win on the hands they open and it goes X-AP. But you'll lose to...
That partner that plays "Feature, 3NT is 'yes'" expects our partnership to be near the top of any game we play. So we don't gamble with our preempts; even NV 1st, they're sound. We win on the game hands, and expect to defend at least as well as the field on the hands we give them free run on.
My EHAA partnerships (don't worry about it, but if you want to know about "wide range"...) use 2NT as "natural, invitational, <3 card support". But that is all part of the answering scheme, which is "responder doesn't ask, she tells. Opener is captain". Again, "you don't want to know" :-).
Do what works for your preempt style. But know what it is first.
When I go to sea, don't fear for me, Fear For The Storm -- Birdie and the Swansong (tSCoSI)