I have 5.6 and 5.23 Mchale's Pits...
Just finished rearranging my 6-man draft board for pick 3.6 for the 1,399th time and I think I'm finally OK with it. I wish I had the guts to swap #6 for #7 on my board but cest la vie... that's "whatever" in french.
Bon chance mon frere
Not sure how our picks could line up in a trade. 4.1 is too much to give up for those two in my mind.
It's an interesting take, and it's good to get a fresh perspective.
My thought process has always been, at least for the later rounds, trade value for a "n"th rounder is n+1 and n+2. In essence, then, a 4th rounder is worth, in general, a similarly situated 5th and 6th. So, fair value for 4.1 is 5.1 + 6.1.
If GC was offering both his 5ths for your early 4th, I'd be inclined to at least mull it over. I might pass, because you need high end players, but my guess is that you'd be pretty happy with who was there in the 5th, as well.