Not true at all. The agro generated on any swing is implied agro (thats what you are calling swing agro) and follow a specific formulate that generates a consistent value for all your swings hit or miss... now that part might not be on a riposte...dunno for sure. The other part is damage done. That is a 1 agro for 1 point of damage thing. So if you whiff a swing you still get the swing agro... but if you hit you get that swing agro plus the amount of DPS you did. Why do you think it is that opening with riposte disc generates huge agro?