Holmbeck coordinates a bit off?

I'm based at Holmbeck

SD always shows the land-away airfields accurately, sufficient to correctly spot when I don't land on the centre-line Blush

however each time I take off or land at Holmbeck it shows me 1/2 a mile from the airstrip

now I know my landing aren't great, but I suspect the airfield may have moved from under me

so a couple of questions

a) where can I see the actual lat/long that SD has for my home strip on iPad version (it's shown on PC version)

b) where can I adjust it?

c) do I just report it as a database update required?

d) can I see lat/long for my current location?

e) can I see the lat/long for where the mouse is (PC version only)

thanks

PS bit more information

Holmbeck website shows N 51 54.6 W 000 43.7

SD shows N 51 55 00 W 000 44 10