yep the 4 power from dobyns takes care of all your 3/8 needs.
think about it like this... this is a blanket statement but true for the most part but there is some cross over to be had but this is the breadbasket weights IMO
Jigs, trigs,but not including swimjigs, as that's where much of the cross over happens.
1/4oz 3 power
3/8oz 4 power
1/2oz+ 5 power
I own champion series 733, 734, 735
and DX series 742, 743, 744, 745, 784
so that is my opinion on how they all rank