What is Pens Plus ?I have used Myland's Melamine lacquer. It was in fact my earlier go-to finish, however it was always a bit of a chore to apply, sand back, apply another layer or two, sand back, polish, etc. It is probably more durable than the Pens Plus I use now, but the PP is much easier to apply, and delivers a vastly superior gloss.
As John mentioned, Poly is also a viable option for pens. I've recently started exploring just a wipe on poly for pens. Still getting the hang of it, its a multi-day job as you need to cut back each coat with a bit of light sanding after letting them dry for 24 hours. But, overall, it seems to be less work than lacquer. The only drawback is the greater yellowing of poly... I stick with Pens Plus for the least color-shift finish, then the Mylands Melamine, then finally the poly.
A friction-polish like blend of DNA, Shellac, Pure (and very clear with very minimal color changing effect on the wood) Walnut Oil, and the real magic ingredient that differentiates it from being "just another friction polish": Micro-crystalline WaxWhat is Pens Plus ?