SME V and cartridge spacer

Lewm, its an old SME V arm issue due to the conical, increasing arm thickness toward the gimbel bearing, when a cartridge is about 16mm stylus tip to mounting platform (more usual is 18mm or yet more like e.g. Ortofon Quintet) the arm (9") starts to faul on the outer edge of the record. Lifting the stylus out of the inner groves as a result. 
I hope this describes the problem, this made even worse when the record is only a little warped?
It also happens that a marginally longer mounting screw projecting beyond the nut when the screw head is used at the top, with e.g. Shure V15-III phono cartridge fauling the same way, as the Sure is also about 16mm or even less with the SAS replacement stylus 😟
Michélle 

One more thing, this fauling happens when the arm is set LEVEL and correct tracking force is applied. 

justmetoo has it right. My Kiseki cartrige tip to mounting platform doesn’t have enough depth, similar to Koetsu’s and the SME V arm. The arm faults ( touches the record rim) when the cartridge is the playing inner tracks and when the vinyl isn’t perfectly flat. It doesn’t help that in my system, the Kiseki sounds best with the VTA somewhat down in back. The spacer I purchased came from SME, I believe is made of aluminum.
And for those cynics above.... yes many things will have some, though maybe small, effect on a system’s sound, especially in a sensitive area like phono pickup.
"Most audiophiles don’t know what they hear." Really? Maybe you don’t, but that is a pretty general statement. Sound’s a lot like "all speaker cables sound the same and make no audible difference what so ever" BS.......
Ultimately I will make a determination in my system with my ears , but I was just looking for other’s experiences in using a spacer.

Hi Jim, I'd be still interested if you could mention the spacers weight, if you'd have e.g. a VTF scale/gauge. 
I my case, a 0.66 gram addition to 5 gram cartridge weight is not to my ears changing the sound negatively on the SME V's 10.5 gram arm mass at all.
Rather helpful it is in this case, as the balance weight is a little less cramped right up to the front, toward the arm bearings. 
Depending on the cartridge's compliancy (cu) it might even be better (or not?) regards the change of the resonance frequency. 
Some would say its immaterial depending on your tt set-up and placement, regards foot fall or seriouly warped vinyl etc. 
This just to have mentioned, to calm down some audio-nervosa cases' comments. 😉
Michelle 

Thanks for the further explanation.