None of the delay blocks will change your dry when placed in series, unless you turn the mix up past 50%, after which point your dry signal will begin decreasing in volume. To test this, add a delay block, set the mix to 0%, and toggle it on and off. The resulting output signal will be identical. In this situation it is pointless to run the delay in parallel as all delay and reverb effects are already in parallel i.e. within the block the dry signal is split, effected, and the wet signal is summed with the original dry.
