My suggestion would be to shave with the grain for the first two or three shaves, and then when your scalp adjusts, go against the grain for the smoother shave....Good Luck!
Get the hair as close as you can with your electric clippers. Then soften the hair with a hot towel. The head blade slick cream is a very good product for a cream. I used a 3 blade unit but found the 5 blade fusion much better and closer shave. A I find after shaving i clean my head with clear & clean face cleaner, feeling for any missed areas. I like the smooth feel after, rinse well and put a moisturizing cream head blade gloss or mat finish. Take your time you can speed up after your shin is used to being shaved. I like the smooth feel. I also find it so much easier and cooler in the summer. Always keep from the sun using a high number sunscreen. And covering with hat if out for a long time. Welcome to SBG.
Headblade is a good product, i feel the fusion or a 5 blade is much better for the task of keeping well groomed.