Morch DP-8 arm on a Helix Two turntable

Mijo, Admittedly, I have never owned a Morch tonearm, but they, particularly the model 8, are very highly regarded among those who do use them.  I don't know how you can dismiss it out of hand in this case, unless you have heard one.  I know you categorically dislike all unipivots, that is your bias in this case.  Can you point to even a negative review on the internet to justify your advice to the OP?  The Morch 8 is the one I would choose over all the other Morch tonearms, were I in the market.

I'm pretty sure that Mark D will tell you that the Schroeder CB-1 is the best value for his turntable and that is why he supplies them as the standard choice for the Helix 2. The Schroeder LT is a another, much more, costly alternative that brings more to the presentation. Last time I corresponded with Mark D he was also looking into trying the Reed 3P as an alternative. 
My advice would be to email Mark directly and get his opinion on the Moerch arm. He is very responsive to inquiries and is a great person to bounce ideas off - he will give you his unfiltered opinions. Congrats on the turntable-it is an end game deck for sure!

@vassilis_t

I set up the Moerch DP8 for a year or so with a van den hul colibri. On the same turntable I replaced the DP8 with the Kuzma 4Point11. Whilst the DP8 was quite good - the Kuzma was far better, both with the van den hul Calibri and also a Kuzma CAR50.

I have also heard the Schroeder CB in the Dohmann which was good.

In my view I would recommend the Kuzma 4Point11 or at a lower price Kuzma 4Point9.
Alternately the Schroeder CB.

Unlike the other posters I have listened to these arms over a period of time.

I also have the Kuzma 4P (11) and recently got the Moerch DP-8 as an alternate arm to use with my AF Technics SP 10 Mk2.  It's only been a short period, but my initial impression is that the DP-8 ain't no slouch. It may not be up there with the 4P, but it's still a very good arm.  OP - I know Hans Henrik is willing to Facetime to help with set up, I would go that route and set up the arm properly before looking for another arm.

Other posters which I assume means me do not have to listen to every single tonearm out there to know what makes a good arm and what makes a lousy one. The Morch violates several key parameters. Having set up and listened to many arms experience is the best teacher. People buy the Morch because they think it looks cool. What they think it sounds like means nothing. People think all kinds of inferior equipment sounds great especially when they just spent a lot of money on it. Dover's experience is rather typical.
@lewm, it is not just my bias. It is the bias of many people including the designers of unipivot arms! Both Graham and Basis have gone out of their way to correct specific unipivot deficiencies. Cartridge manufacturers recommend against them. 

I get a lot of animosity because I do not pull punches. Political correctness only perpetuates problems and inferiority. An opinion stated is one that can be argued, verified or debunked.