That simple fix will just scew the odds horribly, better to just remove filaments completely at that point.
If you have every been in one of those fleets you have about 3 seconds to warp as you land otherwise you die, adding a 20 second spool means that 25man fleet is just dead 100% as they land at 0 with overwelming forces + cynos going up nullbears have no sense of honor and will just go all out no matter what.
That is not a fix it is a swing in the totally opposite direction.