It totally can tell you a difference. They all taste different and have different effects. Even the same brand will vary between batches some. You get even more from it really cause you aren't also burning a ton of smokey plant material with it. Shoot, I can very much tell the difference between the same strain in wax between different growers and which is better.
I had got a bunch of J1 flower in the past when it was able to be found, the shatter and sauce was the same high but cleaner and better. I have like 1 or 2 dabs worth of J1 in the fridge I've been saving for a special occasion cause it's so amazing.
I'll be pressing most of my grow in my sig into rosin with my Dabpress. I'm going to go press some XJ-13 flower I just got out of recommendations here for the strain. Found a seedbank with some xj13 so we'll see how it does since finding j1 has not been successful.