Steve and others, I believe you're right to a certain extent.
But a #30 spine difference? No way for me bud....
100grs. of weight at 20yds, may not be a big deal...but 30#'s of spine and not being able to tell the difference...not any bow I've ever shot a bh out of.
For me, for hunting critters with BH's on my arrows...I want them matched very close...but that's just me.
Now just messin' around stumpin'...not a real big deal...but you still won't see me mixing things up too much...
Again, this is just me...