as I said in this vid I think the fieldmaster may be the 'one', the perfect SAK for me as it has all the tools I deem necessary (saw, awl and scissors as well as all the usual ones that are featured on SAK's) and is based on the 91mm frame. It will be the next SAK I purchase.
What a great gift to receive.
My favourite is the compact, fairly similar to the super tinker but only 2 layers. The scissors are very handy. At some point in the early 2000s they changed the pivot from a screw which the user could tighten to the current design. Wish I had picked up an older model.