Does the damage decrease cap? 1h doesn't really hold much against 2h/pole (for that long), but often against other 1hs. I usually hold for a good 1-2 seconds sometimes, because I like the challenge of playing the reach game with an 88 length weapon and 5ath against 100+ length.
As a strength 1h, it will give me too much of an advantage over agi 1hs that rely on those holds and spacing to get in, so 80% is as much as 1h can take I think. I like the timing, as long as the penalty isn't too high, due to the low base damage of 1h.