Heat pump heating setting

After following the threads on heating settings, a few questions have also come up for me.

A few years ago, I mostly deactivated the ERR on my heat pump, adjusted the heating curve, and set the desired temperatures via the flow rate.
As a result, I was able to significantly reduce consumption and have been quite satisfied with it for 3-4 years.
In total, I consume somewhere around 2600-2800 kWh for heating, hot water, and the remaining ERR. (House living area approx. 125 m², 3 people)

What I didn’t pay attention to at the time during the settings was how short or long the heating circuits are and whether I am causing a hydraulic short circuit or not.
I also did not pay attention to the number of cycles and cannot evaluate that either.

Briefly about the heat pump
We have a direct evaporator with surface collectors and a stratified storage tank from Lüumel.
The direct evaporator operates a bit differently than conventional heat pumps.
The stratified storage tank serves both as a buffer and as a domestic hot water heater.
In the stratified storage tank, water is heated to different temperatures in various layers. In the lower and middle areas, it is more the typical heating temperature, and in the upper area it is significantly hotter due to the utilization of the heating gas.
The domestic water flows through a heat exchanger in this stratified storage tank and is thus heated to domestic water temperature.
For the underfloor heating, water is taken from the middle area and fed back in at the bottom.
The heat pump itself is flow-controlled.

Question 1
Do I have a problem with a hydraulic short circuit at all due to the stratified/buffer storage tank and the flow control of the heating, or does it not matter since the water only mixes first in the HKV and later in the buffer, so that, for example, a too short circuit from the guest WC has no effect?

Question 2
In the description of the heating system I find the following sentences:

During the pause time, re-evaporation occurs in the collector or probe even though the heat pump is off.
Furthermore, condensation occurs in the storage tank.
Re-evaporation and condensation increase the effectiveness of the heating system and thus save your heating costs.
For this reason, pause times >5 min are recommended.

In the settings there is also the point maximum runtime, after which the heat pump turns off initially.
Does this mean that cycling here is even reasonable and desired?

Question 1: To be able to answer that, one would need the hydraulic diagram of your system.

Question 2: It only says that breaks should last longer than 5 minutes. In other words, the system should not run constantly in On/Off mode, but should also have rest periods. Nothing is said about the cycle length.

Here is the recommended setting: the maximum heat pump runtime is given as a recommendation with 15-30 minutes. Minimum runtime 5 minutes