Been thinking about this issue a bit more as 'Riverside' replay help me see how there is an unbalance in the way chaff can force one style of game play. But I don't like the idea of adding a delay to counteract this problem (just doesn't seem organic), that's just patching a problem not fixing it. So I check out what chaff is and started to do a bit of futurology thinking (what things may be like in the future) and came up with this...
Chaff basically scatters the single between a target and aggressors sensor (like a heavy rain show can block your view), its not a thermal thing normally, but in ED, that stuff looks hot! (maybe in ED its both). Chaff Causes the sensor to loose lock as it cant gain enough information on the target. This is where Chaff seems wrong to me, as in this day and age we already have technology that can discern objects from limited visual data. I guess in the time of ED, computers may be a bit better, maybe even 2x as good

Its not correct that we can look at a target chaffing and see it well enough to aim at it, and year 3000 technology cant. I'm not saying that the Ships computer should never lose lock, that would be silly and no fun (but maybe correct when looking at chaff, a very old idea) but I think there should be a distance factor.
Say a ship is within 1k, the ships computer should be able to use is 'Xbox Kinect' system to map out the ships shape and distance enough to target it but unable to select sub targets. This would retain the defensive value of chaff as it can still be used at distance and reduce its effectiveness as a 'Chaff Sheild' in PvP.