Radar detectors - which values are correct?

[jaxa]

I've compared radar detectors values from stock SH3, GW and radar detection mod by Stiebler:

1. stock SH3:
FuMB1 Metox - 4000 m
FuMB7 Naxos - 7500 m
FuMB10 Borkum - 5000 m
FuMB26 Tunis - 10000 m

2. GW:
FuMB1 Metox - 4000 m
FuMB7 Naxos - 12000 m
FuMB10 Borkum - 8000 m
FuMB26 Tunis - 16000 m

3. Stiebler's radar detection mod:
FuMB1 Metox - 30000 m
FuMB7 Naxos - 15000 m
FuMB10 Borkum - 20000 m
FuMB26 Tunis - 30000 m

Historical values:
Metox - up to 34000 m (!) (Clay Blair 's "Hitler's Uboot War")
Naxos - about 8000 m (uboat.net), about 5000 m (FuMB Ant.11 antenna) or 20000 m (Fliege antenna) (www.radarworld.org, other military sites)
Borkum - ? (can't find range anywhere)
Tunis - 25000 m (Fliege antenna) - 50000 (Mucke antenna)(www.deutschesatlantikwallarchiv.de)


Do you know anything else? Which of them are correct?
Do you know any links to interesting sites about German uboot radar detectors?