Also to add to this:
1) Long Jack's effects are not linear.
2) Long Jack is an adaptogenic herb.
Something linear would be like adding calories to gain weight—the more excess calories you add, generally the faster you gain. Long Jack doesn't work like that. Like ginseng and rhodiola, there is an effective dose range, and more is not automatically better. Different people may also respond differently to the same dose. That's why I don't agree that someone should automatically take 1,000 mg of Long Jack.
Second, with an herb like Long Jack, the quality and spectrum of the extract matter—not just the percentage of one measurable compound.
Years ago, LJ100 wasn't simply standardized for eurycomanone. It was a Malaysian Long Jack root extract standardized for 40%+ glycosaponins, 28%+ eurypeptides, 30%+ polysaccharides AND a minimum of 0.8% eurycomanone. It is produced from Malaysian root using a patented water-extraction process.
Eurycomanone became a popular standard because it's an active constituent that can be readily measured. That gave manufacturers of other extracts something they could put a number on: 2% eurycomanone.
But 2% eurycomanone does not mean "twice as strong as (or as good as, or 1/2 as good as) LJ100 (100:1) at 1%." Long Jack is a complex botanical, not isolated eurycomanone.
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With all this said, I can't say the 2% extract 1100mg caps is useless or "potent" all I can say is that, no one needs 1100mg of a good Long Jack, you don't even need 1100mg in an entire week of good Long Jack.