[Tiara Sovran] Laying up

[Skyhawk]

I am on my first year of owning a 2008 Sovran with Volvo/Penta 435 HP engines and IPS drive system.  In the Volvo books it says if laying up in the water you must start the engines, run them up to operating temp., engage fwd and rev. a few times and run the helm from block to block a few times every 14 days.  Not ever owning Volvos before I am wondering if this is overkill.  Please advise.  Thanks
Mike
M/V Hombre