Please explain heavy duty shield booster mods

[Andovar]

So as I start to mess around with engineers more, I've started to dig into the details on inara.cz

I'm sure there's a simple explanation, but this looks off to me:

Variants
class 0A :
Shield Boost: 137% - 179%

class 0B :
Shield Boost: 167% - 218%

class 0C :
Shield Boost: 214% - 279%

class 0D :
Shield Boost: 310% - 405%

class 0E:
Shield Boost: 599% - 781%

If I take the low end of the scale, it would turn a Class E booster from a 4% boost to a 24% boost, and a Class A goes from a standard 20% boost to just 27.4%.
It would seem to me that it would make more sense to save on power and weight and just mod Class E boosters, instead of going for that very modest shield difference.

Of course my maths could be way off too.

 

[DarthRavadge]

Depends on the ship. If you don't care about mass or power and just want the biggest boost go for the "A". If you want to squeeze out some extra jump range go with "D".

Also the improvement % is how much the base % is modified by. So take an "A" that is 20% and say the improvement you get is 50%.
That is not stacking to 70%. It would be 30% total.

 

[fennster]

Heavy Duty Shield Booster (Grade 5)

standard boost ------- Engineered affect -------- Additional boost ---------- Final boost to shields
class 0A : 20% -------- 137% - 179% ----------- -- 27.40% - 35.80% -------------47.40% - 55.80%
class 0B : 16% -------- 167% - 218% ------- ---- - 26.72% - 34.88% ------------- 43.40% - 51.80%
class 0C : 12% -------- 214% - 279%-- ----------- 25.68% - 33.48% --------------37.68% - 45.48%
class 0D : 8% --------- 310% - 405%-------------- 24.80% - 32.40%-------------- 32.80% - 40.40%
class 0E: 4% ---------- 599% - 781%-------------- 23.96% - 31.24%-------------- 27.96% - 35.24%

From this thread https://forums.frontier.co.uk/showt...eavy-duty-Shield-boosters-wanring-nerdy-maths

 

[Andovar]

ahhhhhh... Thank you fennster.

So the additional boost is added to the standard boost. That makes a lot more sense. I initially thought the modifier was just modifying the standard boost number.