memory flags vs direct connection

[J V]

Simple question...

Suppose I have a function block A whose output I want to connect to blocks B, C and D. Of course I can do this with 3 lines, but I can also send the value to a memory flag, and use three read-instances of the memory flag in B, C and D.

For complicated connections, the latter approach allows for better readability. But is there a difference between both approaches? With difference I mean in terms of execution (timings?) or memory usage on the Loxone.

Thanks!