To be honest,I would say My first experiance at cam degreeing was in fact hard and time consuming.But I am so glad for that learning experiance.The toughest problems for me were getting exact repeatabilty with specs. after each check I made.And finding the proper equipment for the job.In particular A)long stem micrometer. B)Had to fabricate a flat cap for the tappet to ensure proper seating for the mic. tip.Also I found my intake and exhaust lobes were not exactly in phase with each other.So, after it was all said and done slight compromises had to made when evaluating the best cam position.Again, yes it was a big pain the neck but still very a challenging and worthwhile endeavor.Read as much as you can on the subject and good luck!