I dont really like how heavy personal scale weapons interact with vehicals and starships, and vice versa- there is too big a leap between the Eweb that takes three people to set up, and the autoblaster you can mount on a swoopbike. This change also incidently addresses the "Paper starfigters" rule, as an artifact of the rescaling.
Vehicular rescaling: Each point of damage done by a vehicular weapon to a personal scale target is worth 5 personal scale damage... not 10, as written. Likewise, each point of Armor and Hull takes 5 wounds to pierce or harm. To compensate for this, double all vehicals Wound and Strain thresholds from as written, but leave Armor values the same. Breach 1 now penetrates 2 armor, or 10 Soak.
Now, a vehicular autoblaster -is- basically an Eweb, though successes scale better with the vehcal weapon. A starship laser cannon does 25 to 35 wounds, enough to take out all but the most heavilly armored personal scale target... but not the 60 or so it otherwise would.
Likewise, a squad of snowtroopers shooting an Eweb (damage 15) at the Falcon (armor 3) stand a chance of actually doing something, however unlikely- they brought that weapon into Echo Base for a reason after all.
Doubling the hull and system strain is aimed mostly at the smaller vehicals, like swoops, that were designed to be killable with personal scale weapons despite the scale differerence- doubling the hull cancels the effective doubling of damage- though the "breakthrough daamage" drops significntly. Strain is doubled because of ion weapons, but it also means fragile craft can pull a few more maneuvers before falling apart.
While intended for small scale vehicals, this change has an interesting effect on starfghter combat. Effectively, weapons have beeen nerfed to half their original killing power, and system strain thresholds are higher, leading to longer, more active combats.
Is there anything I'm missing? What are your thoughts on this rule?