I use the Alko stabiliser in conjunction with the LEAS electronic stabiliser, not together with a Straightliner. As the electronic stabiliser is a self-acting closed loop system and doesn't impart any additional forces through the towball, it is the only system which can be combined with frictional (AlKo, Winterhoff or blade types) or viscous (Straightliner) stabilisers. Other combinations would double the forces that act through the towbar with the consequent danger of fatigue failure either of the towbar or the vehicle underbody structure.