REALLY Difficult Locks

[Nymdok]

EDIT: Final Version Is Here

It was asked of me in another thread how Id price exceptionally fine locks in GURPS. I took the 3 points that we have values for (basic, normal and Fine) and interpolated and extrapolated those values. I figured Id post the numbers here and see which ones sounded most reasonable to ya'll.


The first column is the Difficulty modifier. Reg is the RAW cost multiplier for a lock of that difficulty.

Linear is the cost assuming two straight lines. One from Basic to Average and one from Average on up passing through Fine.

Qd is a Quadratic fit using .22(Modifier)^2 - 1.9(Modifier) +5 = Cost.

Exp uses an Exponential Fit according to the equation 4.6416*(e)^(-.29 * Modifier) = Cost. After Cost factor 10, these are rounded to the nearest 5.

+-   Reg  Line  Qd  Exp
10   n/a  n/a  n/a  .25
 9   n/a  n/a  n/a  .35
 8   n/a  n/a  n/a  .45
 7   n/a  n/a  n/a  .60
 6   n/a  n/a  n/a  .80
 5    1    1    1    1
 4   n/a   2    1    1.5
 3   n/a   3    1    2
 2   n/a   3    2    2.5
 1   n/a   4    3    3.5
 0    5    5    5    5 
-1   n/a   8    7    6
-2   n/a  11   10    8
-3   n/a  14   13    10
-4   n/a  17   16    15
-5    20  20   20    20
-6   n/a  23   24    25
-7   n/a  26   29    35
-8   n/a  29   34    45
-9   n/a  32   40    65
-10  n/a  35   46    85
-11  n/a  38   53   115
-12  n/a  41   59   150
-13  n/a  44   67   200
-14  n/a  47   75   270
-15  n/a  50   83   360
-16  n/a  53   92   480
-17  n/a  56  101   640
-18  n/a  59  110   860
-19  n/a  62  121   1145
-20  n/a  65  131   1535

Going by these numbers (Roughly)

Linear
10$ Gets You a weak lock at only +4 to Pick.
100$ Gets You a Weak lock at -5, Standard @ +0, or Tough/FS @ +5
1000$ Standard @ -15, Tough/FS @ -2
10K $: BS+4,
100K$ BS -5, BV +2,
1 million BV -9, Depository +2
10 million Depository -9
15 million Depository - 15

Quad
10$ : Weak +2
100$: Weak -5, Std 0, T/FS +5
1000$: STD -10, T/FS -2
10K $: T/FS -17, BS +2,
100K$: BS -5, BV +1
1 Mil $: BV -8, Dep +1
10 Mil$: Depository -8
30 Mil$: Depository -17

Exp
1$: Weak @ +10
10$: W +3, Std +8
100$: W -5, Std +0, T/FS +5
1000$: W -13, Std -8, T/FS -3
10k $: Std -16, T/FS -10, BS +3, BV +9
100K$: T/FS -18, BS -5, BV +1, Depository +9
1 Mil $: BS -13, BV -7, Depository +1
10 Mil$: BV -15, Depository -7
100 Mil$: Depository -15

So my questiona are:

Which one of these, if any, seems like the most reasonable progression?

High Tech lists -5 as Fine. WIth that In mind, Ill take -5 as commercially available to average consumers.
-5 : Fine - Highest Commercially avaiable to individual consumer. A wealthy persons Panic Room might qualify.
-10 : Custom Built or Very Fine. Highest available to corporate/Buisness. The lock to the server room at IBM or the lock that keeps the Coca-Cola Secret formula.
-15 : Governtment Installation, Evil Genius Lair etc. The kind of locks kept at Norad/Pentagon/White House that guard national secrets. Cold war launch codes could be hidden behind these locks.
-20: One of a kind, revolutionary or prototype design. Locks of these caliber are normally the thing of value in and of themselves.

These are presumably for more cinematic campaigns.

Nymdok