Low PS I would still assume 4-5 PS. 1shotting ANYTHING with 3 PS is pretty crazy. Low PS is supplemented by higher riding and therefore better speedbonus. The times when you can do enough damage to 1shot someone by speeding up, you can also receive massive damage, so I am okay with that. Risk/Reward.
And it still happens when I have 6 power strike, just not as much.
I think you're agreeing with me, here.
I am 24/15 with 7 IF, 8 PS, 5 riding, 5 shield, 5 ath, and 5 WM. I know I deal fairly large amounts of damage no matter how fast I am moving. I just find it strange that when I make mistakes or get dehorsed, I get punished so very little. All of the things I ask for fixing I have personally done myself since there's no reason not to use those in my favor.
With high STR, IF, and armor, if I get dehorsed, I rarely get damaged that much in that 3-4 second span (they miss or don't deal enough damage to kill). There were also times where I was dehorsed and I slid too far for melee to get a hit before I blocked. I feel that not being able to stab guys who stop you and receiving a little damage when dehorsed is very reasonable.
EDIT:
Since pikes are defensive counters, I wanted to support the suggestion another player made about increased lance radius for short polearms. It will help give flavor to heavy lance domination. I'm only talking about the absurdly short spears, not the slightly short light lance. I figure they wouldn't be very strong against the 1h cav/infantry, but that's a guess.