This is why RPI is not important IMO. Also, adjusted averages in hard eras like the 50s and 80s are pretty much the same as adjusted averages in the 00s. That's what really annoys me.
That is patently not true. Here's a look at the adjusted averages of all batsmen ranked 24th to 100th ordered by the midpoint year of their career. The amount of adjustment to the original average is on the right.
C Hill 45.90 39.21 1.17
VT Trumper 45.29 39.05 1.16
GA Faulkner 49.11 40.79 1.20
HW Taylor 43.37 40.78 1.06
EH Hendren 43.72 47.64 0.92
SJ McCabe 45.25 48.21 0.94
B Mitchell 47.42 48.88 0.97
GA Headley 60.24 60.83 0.99
AD Nourse 52.91 53.81 0.98
DCS Compton 47.90 50.06 0.96
AR Morris 43.40 46.49 0.93
CL Walcott 53.06 56.68 0.94
RN Harvey 46.36 48.41 0.96
FMM Worrell 47.59 49.48 0.96
PBH May 46.55 46.77 1.00
TW Graveney 42.92 44.38 0.97
Hanif Mohammad 42.77 43.99 0.97
NC O'Neill 44.56 45.56 0.98
ER Dexter 45.60 47.89 0.95
MC Cowdrey 43.44 44.06 0.99
SM Nurse 45.76 47.60 0.96
RB Kanhai 46.01 47.53 0.97
EJ Barlow 44.58 45.75 0.97
WM Lawry 45.94 47.15 0.97
RG Pollock 60.35 60.97 0.99
RB Simpson 44.95 46.81 0.96
JH Edrich 42.34 43.54 0.97
DL Amiss 43.99 46.31 0.95
IM Chappell 41.15 42.42 0.97
G Boycott 46.57 47.72 0.98
KD Walters 47.01 48.26 0.97
CH Lloyd 45.68 46.67 0.98
GR Viswanath 41.13 41.93 0.98
Zaheer Abbas 42.06 44.79 0.94
CG Greenidge 43.37 44.72 0.97
DB Vengsarkar 40.75 42.13 0.97
Javed Miandad 49.34 52.57 0.94
GA Gooch 42.32 42.58 0.99
DI Gower 43.47 44.25 0.98
AR Border 49.36 50.56 0.98
MD Crowe 43.58 45.36 0.96
RB Richardson 43.91 44.39 0.99
DC Boon 41.80 43.65 0.96
Saleem Malik 41.67 43.70 0.95
M Azharuddin 42.49 45.04 0.94
PA de Silva 41.65 42.98 0.97
MA Taylor 41.22 43.50 0.95
Saeed Anwar 44.01 45.53 0.97
ME Waugh 40.77 41.82 0.97
A Flower 49.75 51.54 0.97
G Kirsten 42.78 45.27 0.95
GP Thorpe 43.93 44.66 0.98
DR Martyn 44.48 46.38 0.96
Inzamam-ul-Haq 48.21 50.16 0.96
JL Langer 42.99 45.68 0.94
ML Hayden 46.68 50.22 0.93
AC Gilchrist 44.64 47.60 0.94
Mohammad Yousuf 49.10 52.29 0.94
VVS Laxman 43.61 45.97 0.95
DPMD Jayawardene 46.24 49.84 0.93
SM Katich 43.08 46.00 0.94
V Sehwag 45.82 49.43 0.93
TT Samaraweera 45.04 48.77 0.92
CH Gayle 40.07 42.19 0.95
GC Smith 44.65 48.70 0.92
MEK Hussey 48.15 51.52 0.93
Misbah-ul-Haq 44.23 46.63 0.95
MJ Clarke 46.48 49.41 0.94
KP Pietersen 45.03 47.28 0.95
HM Amla 44.06 46.64 0.94
AN Cook 42.71 45.35 0.94
LRPL Taylor 44.65 47.18 0.95
AD Mathews 43.42 44.31 0.98
KS Williamson 48.92 52.21 0.94
CA Pujara 47.33 49.48 0.96
DA Warner 45.65 48.34 0.94
JE Root 47.48 48.55 0.98
For players whose midpoint in their career was in the 1980s and 1990s, the average adjustment is 0.97.
For players whose midpoint in their career was post 2000, the average adjustment is 0.94.
To prove it, DoG can you put Ponsford's and Woodfull's FC stats into the machine with a 50 SR for Ponsford and 40 SR for Woodfull and tell us where they rank? I suspect 2 and 3 despite them playing in a really easy era of Australian and Victorian flat-tracks.
I don't have the runs per wicket averages of any FC match in Australia from the interwar era. Nor do I have team ratings for first-class cricket. However, I think they would probably lose at least 10% of their average. If you score big runs on flat tracks then your average will be adjusted downwards in a big way. That's how the system works.
I base my adjustments on strength of opposition and pitch conditions. On an innings-by-innings basis.