I have mounted the tonearm of an Akai AP-001 on my turntable. I placed a cartridge and headshell on the tonearm which are so heavy that the tonearm weight is almost at the end of the tonearm for the correct tracking weight. I read on a Lenco forum that Akai sold a separate additional weight for this (and similar) tonearms, encircled on this image. Does anybody happen to have this additional weight?