Fishing Node V - Help

[zzapp]

Admitedly, I'd rather watch paint dry or grass grow than fish, but having run out of things to do, I recently decided to level fishing.

Despite the fact that it's the most evily designed time sink in the game, I've somehow managed to get marginally to the point where I can fish tier V nodes. Up until now, it hasn't been that difficult, with a little time, to identify exactly which type of fish was biting, and where to set the hook, accoringly, to catch it with extreme consistancy.

However, this doesn't look to hold true for V nodes. What appears to be an identical location or remainder on the stamina bar doesn't seem to correspond, necessarily, with a particular fish, and thus results in a mis-targeting, and often loss of lure, as a result. (16 fly lures I've lost trying to get this one level - up until now, I most often get multiple levels without losing a single lure ;

My question is, am I not being perceptive enough to notice a (very) slight deviance in the stamina bar, or is this something that is to be expected with tier V fishing nodes? Had no such issues like this with mining or botanist.

Any guidance or words of wisdom here is sincerely appreciated.