@samzx12 It is good to see your first investigation of a alternative Phon' allows for a Home Demo' , a Comparison and a Return Option.
I have only heard one ,Modwright Phon' in the UK, but not the Model you have selected.
I do use a All Valve Phon' that has been voiced to suit what I class as having an attraction unique to my needs.
My learning about a Cart's voicing has put the Hana Umami Blue on my Radar to be demo'd and experienced, fortunately for yourself, this is in the home system. My instincts are strongly suggesting this Cart' will be a positive stimulus when used on conjunction with an All Valve Phon'.
Some will be Loath to this suggestion, a SUT is a device that should not be overlooked, and by being further investigative, the outcome could become there is even more attraction added to the sonic, if a SUT is used with any Phon' available during the Trial Period.