“Signal Strength” optimization vs Track blocks vs DCS/power feed ?

Good day,

I have seen a few posts talking about “signal strength” optimization and suggesting isolating track sections into blocks, putting DCS/power feed at the center of each block.

I could understand easily that track block (Isolating track sections) was applicable when using multiple TIU channels or using multiple TIUs on a same layout.  In that case, obviously, the same DCS signal is sent from many sources simultaneously (i.e. each TIU channel), which could lead to some kind of “packets interference”. 

But, is there anybody suggesting that the optimal approach is to create a track block for each DCS/power feed, even if using only one TIU channel?  (ref: See attached drawings)

Would this really improve anything or create other issues?

Thanks

Daniel

As shown on p.12 and p.106 of the DCS Operator's Manual (fifth edition): 

Would anybody recommend isolating 3 track blocks like this ?