Correct. No bobweights required. Swap out rods and pistons all you like as long as they are matched sets of six.
My cut down crank probably has more bending loads because I've reduced the counterweights but I think my light pistons should offset this somewhat.
The counterweights on inline six are there to reduce crankshaft bending loads only. v8 cranks are different story. v8 counterweights reduce crankshaft bending loads but also make a tradeoff of the unbalanced force directions. Inline six does not have the unbalanced forces.
