some question about the drowsing rod

[dunehammer2014]

Now im searching for higher purity mines, but i got some problem about how the drowsing work:
as the purity of my rods increasing, i can find fewer mines,so now maybe i need to spend hours to find a potential high mine,so most of the time, my arrow spinning 360 degree around me, but i noticed sometime it spins very fast, sometime its slow, is there any hint to use this to find mines more efficientely??

[Mereni]

Yes, use kandarim's client.

[Kandarim]

basically, if the arrow does complete turns over your head (i.e. larger than 360 degrees), you haven't got a mine in your range. If you have a detected mine, the arrow will only cover a pie slice of the angle interval (even if it can be very large, e.g. 300 degrees or something). My preferred method of prospecting is a simple gradient search:

run until you detect a mine
keep running until the angle starts to increase again.
head orthogonal to your current direction, either to the left or the right, whichever decreases the angle.
Rinse and repeat.

[dymm]

This is iron node found with 0% wand
http://game.salemthegame.com/mt/ss/6c88b85a7120f15ac07ed3d72cae0b6f
This is nothing found with 12% rods at the same place
http://game.salemthegame.com/mt/ss/b5c2f350d2a45a6000b46833350d373f
Any idea?

[Hardsun]

Afaik you cant see mine if its stats (salt itc) is more then +/-10 from dowsing stats. Probably your 12% rods got too much of something to detect this mine.

[dymm]

Bingo!
Thanks!

[Kandarim]

rods/wands can only detect mines which are "close" to their own elemental make-up (unsure about the interval width).

ffr: there was a bug at the start of the providence server where wands could find ALL mines, but this has since been fixed.