fhovie, did you check with a good loupe whether the negative is the source of your lack of sharpness? It could as well be a misaligned enlarger or some lack of flatness in the carrier.

It is not unusual that a short lens has a curved (not flat) field, esp. when using it close-up. But you should be able to check this on the groundglass. Use a small Maglite at the subject to check this at f32.