maximising yields

So im intetested in maximising yields. I found a device called MyDx that can test for potency, do you think its worth it fir $599? I've seen a similar device by cyranose but its in the thousands, any thoughts?

Why not just pay the labs to do it with actual equipment for like 100 bucks a sample? At least you know its actually correct. That's my .2c anyway.

iv just answers your question on another forum ,, why are you buying a potency tester , when your wanting to max your yeilds. If you want more potency ask around the forum and learn your techniques, then smoke it to test it, if you want to maximize yeild learn topping techniques and read reviews on different strains , there's some heavy budders out there money maker being one of them,,,personally i wouldn't buy a tester unless your buying in bulk from a grower to sell in the shops,,,smoke it will be the best test or give me some ,ill test it for free ,,lol