Hello
PL-41's I have a story there...
Bought #1 at the thrift for $10 a friend saw it, gave me a second for free.
I had a bid on E*** and won number 3. I didnt need it but it was too late.
Out of all 3 I have 2 decent tables and one that is about as clean as can be.
I noticed the same, a Rega arm is just about a perfect fit, just enlarge the mounting hole a couple mm, the arm to spindle measurement was 221-222 mm if I remember.
I didnt change arms but thought the same thing, the Rega would fit.
I did take the stock Pioneer arm off to clean and reset the vert and horiz bearings, because there was noticable slop.
I hated the original headshell and the PL-41 uses the SME headshell mount so finding a decent headshell shouldnt be a problem.
So I replaced it with a Sumiko headshell from Needle Dr.
The arm balances just fine with the Sumiko headshell and either Grado or Shure cart.
Oh I also took apart the counter weight cleaned and lubed the tracking weight adjustment mechanism.
Cleaned the arm lift and refilled with fresh silicone fluid, now she q's fine and drops very slowly.
One thing to look out for is the thrust pad for the platter bearing is most likely trash, all 3 of mine the pad was breaking up, I just replaced it with the same thickness delrin disk and relubed the bearing.
Also went a little nuts and polished the main bearing shaft and bearing tip.
The bearing tip, I polished this to a mirror finish.
I have found that this is a really nice table very smooth and quiet, nice sound.
Also Id like to have the raised edge on platter machined off so I could use a different platter mat.
But for now I'm stuck with the original mat.
I noticed on E*** a guy had a PL-41 with a SME 3009 mounted, he removed the SME arm lift and was using the liff built into the PL41.
bob