would a shelter 501 work well in a michell tecnoarm?


I have been running a shelter 501 in an Origin Live   modified Rega rb 250 on a Gyrodec and find it bright and hard-not  very pleasant. Perhaps a compliance mismatch?
Have been offered a good deal  on a technoarm but this is again a modifed rega so I'm worried. Does anyone have experience of this being a good match?  I am looking for a the neutral-slightly warm presentation with bloom that the shelter is well known for .
If not the tecnoarm then what is a good match in that price range?
rrm
I recently purchased a 501 Mk III for use on a Rega RB303 arm. Based on the results of this calculator, I added a 3 gram weight to the headshell. I have no idea if your problem would be fixed by that but it’s a cheap fix to try.
http://www.vinylengine.com/cartridge_resonance_evaluator.php

edit: i also had it professionally setup so there's that too.
i used to have technoarm/shelter501 combination.
never found it harsh or bright. contrary it was very well balanced and smooth.
you might want to adjust VTA.
thanks for the responses
I tried adjusting the VTA -lowering the arm- but it had a helpful  but limited effect
I also added some weight to the headshell-again a limited effect.
Tortilladc: did you find that adding the weight made much difference to the tonal quality??

How old is Shelter?
Didn't mention hours too many or too little...
My Shelter is definitely due for re-tip and harsh in inner grooves in almost all of my records with small exceptions on high-quality deep grove cuts.

not too old: 4-500 hrs.Sounded very smooth on a LP12/Ittock before I moved it to the gyrodec/rega