Well I suppose BOD changes are on, so I tried to fill in some of my BODs and exchange them. I filled 147 of them and was bored almost to death.
Anyway, let me share results of the exchange :

47 normal, 47 exceptional, total 94 iron BODs, 64%

6 norm., 8 exc., total 14 dull copper BODs, 9.5%

11 norm., 4 exc., total 15 shadow iron BODs, 10%

2 norm., 1 exc., total 3 copper BODs, 2%

4 norm., 3 exc., total 7 bronze BODs, 4.8%

0 norm., 3 exc., total 3 gold BODs, 2%

1 norm., 2 exc, total 3 agapite BODs, 2%

1 verite norm., 0 exc., total 1 verite BOD, 0.6%

and finally no valorite at all, 0.0%

Also 7 large BODs ( 4.8%) - all junk.

I'd say I'm quite disappointed. Some consolation from dull exc., shadow exc., agapite normal, which may yield 5-6 PoF.