If you read the instructions for super glue...just about any type, it says to be used on CLEAN, smooth surfaces. Putting razor marks, or grooves etc makes the surface rough, not smooth. Face the ferrule normally, then Sand the back of tip smooth and flat, on a flat board, then check the tip on the ferrule....ANY rocking motion means you have to do one or both again...do it until the tip sits flat with no movement. Then Pre-prime the tip with a thin super glue, then once dry, lightly re-sand flat and recheck the fit on the ferrule. (pre-priming seals the tip so it doesn't soak up all the glue and create a bad bond). Then install the tip using a glue that is made for your ferrule material. The main issue is that the ferrule material used a lot nowadays is high temp plastics and regular Loctite or other CA's may not grab properly. Use Loctite on the normal ferrules like juma, ageis, phenolic, pvc, titan, etc. Use 3M CA40H on the high temp materials. It's not cheap, but it is designed for these types of hard to glue plastics. Roughing/slicing/grooving is just a poor workaround for not using the proper glue for the job, IMO.
Hope this helps,
Dave