Raking Angle

Jwglista,I use Scotch electrical tape.I start with pulling from the roll,then fold it at 1/4" lengths,or longer if desired.Keep folding until desired thickness is reached.I use that for spacing.Sometimes when things don't sound right,I put a couple of layers on the arm before mounting cartridge. If both aren't completely flat,it acts like a gasket filler material,and keeps vibration(rattle) down between arm,and cartridge body.Its cheap,you could keep changing thickness,and it works for me.Use extra care in tightening the screws.I don't think you need it very tight.I never had one break,but heard others have.

Just to get an idea of how much of a rake you need just fold a piece of cardboard under the headshell. Then you can use something permanent like the sheet metal you have in mind.

A metal shim might rattle.I've been using the tape for decades,and dealers like the idea too.It stops rattles.Some were using Blu-Tack,but switched to the tape method.

Once again, I apreciate the responses. I actually found an old expired credit card and cut a small slab to use as a spacer. This helped to modify the raking angle. So far, it seems to have improved the sound. I was able insert the spacer without affecting the alignment.

My local hardware store and hobby stores carry plastic as well as brass strips and rods in the tiniest of diameters. Like piano wire. I'd think that little pieces slipped under the rear of the cart would work and be repeatable. Check this link: http://www.hobbylinc.com/Plastruct_Building_Supplies