Just throwing in a 2 cents to this thread on "pins". Here are photos of sectioned Buck slipjoints thru the ages. I like a perfect blade to handle attachment like the next guy. Not much wobble, but no scaring of the blade tang by opening action. Clickable photos to reduce space on thread for those not interested. I did the sectioning by epoxying everything in blade well and grinding and polishing till I was tired of it............. 300Bucks
First 300series Schrade contract Buck slipjoints. 66 to 72
Second model 300 series, Contract with Camillus 1971 - late 90s note swelled ends
Buck in-house method. 1990 to present, intergal liners
Heres how Schrade did the liner for assembly. This required complete dis-assembly for repair......and let me tell you, three hands would have been "handy".