Recently I Saw . . . . . . . - Trains Magazine

I have a question about the transition phase difference between EMD and GE units mentioned in your forum post. Which builder's products are you identifying as having the rougher transition phase? It's a small, inconsequential item for sure, but I'm interested in the answer.
Thanks.

BLColburn
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Recently I saw a strange lash-up on the BNSF River Sub by my house. Here's how it went:
1. SD40-2 --- BN
2. SD70MAC --- BNSF pumpkin
3. SD50 --- Oakway leasing, still in full EMD paint
4. C44-9W --- BNSF pumpkin

I couldn't figure out why BNSF would running an A.C. unit in the middle of 3 D.C. units espically since D.C.units have the transition phase with the traction motors, and A.C. units do not. Also, why they would be running a single GE in the midst of all those EMD's ( GE's have a much different transition phase than EMD's [much rougher] and just one GE in a lashup of all EMD's can screw up the transition of the EMD's). A friend of mine suggested that it was a power shortage because he saw a SUPER odd lash-up himself, It was a coal train running in DPU, up front;
1. SD70MAC
2. GP35
3. GP28M
in rear:
1. SD70MAC
How 'bout them apples?![8D][wow][;)][yeah]