Long headshell required

@koala can you achieve any alignment type with standard head shell, even if cart must be twisted a bit from parallel with head shell? Could be that would work ok despite not being ideal. 

Thanks again for all of your input and suggestions. 

To explain the scenario - EPA100 tonearm has a large/wide mounting base and it's going onto a plinth where the arm board position doesn't allow it to get close enough to the centre (unless I cut into the plinth).  It is close to the right point and sounds good but is not optimal.  My measurements show that an extra 10mm length on the headshell will get me very much in the sweet spot.  I have moved the cartridge in the headshell as far along as it can go and it improved the positioning.  I'm using an alignment disc template to determine where it needs to go.

I was thinking of fabricating something and what @imhififan has suggested makes it clear what could work.  Obviously need to manage the weight and balance

It's certainly not optimal but I want to do something for the interim.  I need a different plinth but that's not in the budget right now.

I will give this a go :)  thanks

What alignment algorithm? As in Baerwald, Lofgren, Stevenson, etc? Many of the older Japanese tonearms were designed for Stevenson.

Dear @koala  : The base of the EPA100 is a " normal " one, it's the MK2 version which is really huge.

If you are off by around 10mm tha's too much. Maybe you can use an external tonearm mounting tower but I think that will be good for you get advises about that at least show  your TT set-up with the epa-100 mounted or at least which TT you own and what tonearm was using with.

More information better advise you can get.

Regards and enjoy the MUSIC NOT DISTORTIONS,

R.

Thanks again for everyone's advice

Yes, it's a Mk 2.  The calibration disc does not show the algorithm unfortunately,

I will try mounting the arm again and see if I can achieve the correct P2S distance.  If not, it will be time to get a different arm