Pheromons should ALWAYS match whatever lure you have equipped.

[(PSN)AbBaNdOn_IGN]

We should NEVER EVER have to open scent wheel and use/equip a pheromone.   We should only have to equip the correct echolure, if we have a pheromone for that lure it gets AUTO-EQUIPPED. 

[fr4gb4ll]

this is indeed annoying and more or less a waste of pheromons sometimes. the waste comes not from being silly and choosing the 'wrong' type (anyone with one eye can see which is the correct one) but from the pheromons being activated when choosen from the wheel - something that isn't the same mechanic like the fishing-baits and 'enhancer'... so the very first time at least, the player will likely first use one pheromon when choosing the correct type and then will waste the 2nd one right after by pushing '3' like it is with fishing... and then, ofc, is the fairly good possibility to accidently missclick on the wheel - which then will activate the wrong type (and maybe even interfere with a second correct one - i didn't bother to test this, but wouldn't be supriesed if it were so).

so, like the OP said: always match the selected lure and the pheromon (if available) but also remove this 'auto-use feature' which is absolutly no help at all in this case. i can't think that anyone find this 'mini-game' in the hunting process anything but annoying...