The only argument I have ever posited in this thread is that of real world experience. That of using/testing/living with the parts on my vehicle for an extended period of time and miles. Every argument you have put forward has been based on a purely academic viewpoint.
You also acknowledge that the bushes do work. but that in your opinion not on a road car, for you. But on a road car for me, they do, and for others they don't and for others they do so its not really an issue, is it?
Many of the arguments made have been a direct discredit of the bushes or the marque or the people behind both. I have always maintained my perspective and position in relation to actual, personal experience and used that against every argument positioned against the items where I have actual personal experience to back it up.
I do genuinely urge you to try a 159 that has been Powerflexed to bring some balance to your own perspective on the matter. It really is enlightening.
I was an early adopter of the Powerflex bushes and have had 4 different versions on my car. All developed with the help of Autolusso and Powerflex. My car was one of a small number of cars used to do development on and we each fed back problems into the design process. Granted it was not a massively funded activity and its taken a while to get them right. In fact my car is the only car in the world that has the latest Mk4 versions on while I put some miles on them. (I have to pay for them as well so its not free testing!!)
Perhaps that's where the inferred link comes from? I am clearly an advocate of them!
As for being a nice chap, perhaps, perhaps not, its mostly unimportant in the context of a forum as long as we all play nice.
It is only right and proper that we play nice, not just to each other, but also Alfa Romeo. If anyone has any serious concerns about Alfa's capability, they should speak directly to the company. It would be dealt with in a professional manner and in this context one could say what one likes in private communication.
At this particular time, billions of pounds are being invested in the Company for the American market. And this site is public knowledge. And that does not entitle anyone to make derogatory comments in a manner which could be seen as damaging to the company's commercial interests. The above, can and would be contested in law, to the extent that, as you were indeed having your vehicle used as a test mule, there is a link between you and a Poly-bush manufacturer and your views therefor are indeed theirs. I would therefor council everyone to temper their views, when airing them on what is essentially a public site. It would not be good for the Alfa Forum to be dragged into litigation on the basis of unsubstantiated claims about the inadequacy of Alfa Romeo's products, whilst at the same time expounding the virtues of any products that have not faced the same regulatory scrutiny that all European car manufacturers have to face.
If any company which produces Poly-bush products, has such confidence in the comments that hitherto have been made on this site, then they should say so directly. That they do not speaks volumes. And that they supply you with research data, no matter how lightweight could be seriously damaging for them, as indeed a good lawyer could successfully prove in law, their is a link.
That said, as no technical evidence for the superiority of these products over O.M. products, other than anecdotal evidence provided by those that have adopted these products, perhaps now we can look at it purely from a logical stand point. It has been acknowledged that there is no need for polys at the rear of 159 as the system can be adjusted. Does that suggest a technological short coming?. That the car was designed on the principal that the wheel and steering alignment would not also function as an integral part of the overall suspension, thereby reducing loading and dynamic stresses by an incredible amount, does not sound like any design failure on the part of Alfa to me. The suspension systems on all Alfas prior to the 159, all the way back to the Alfetta, have been designed around front wheel drive technology, which could be made to work on small cars. Alfa will admit themselves, this was a serious compromise for the size of the vehicles they were making. But financial constraints meant they had to do it. In this, it is testimony to the greatness of this little company's history and engineering excellence, that they were able to make it work. Now they have gone back to double wishbones, and with the added experience gained from having Ferrari in the same family and racing, they seem to be on their way back. Double high wish bones are the way forward for the class of car the Giulia is. And this is testimony to the virtues of the 159 chassis and suspension layout. If the number of issues raised about the 159 suspension were that large, Alfa would have Acted. That they are not indicates, the critics arguments are flawed and largely unsubstantiated.