John, I use the clear gloss referenced in my post on the thread I linked to. Below is the clip I wrote on the method I use. It is based on Wayneis' Enduro instructions.
I bought the following: M038-D Clear Sealer and M023-D Clear Gloss. They also include a bottle of reducer, which I put up and am not even sure where it is.
After I get my wood blank as smooth and finished as possible, often using thin CA to fill any porosities in the blank, I apply a thin coat of sealer with cut up T shirt material with the lathe turning pretty slowly. (You will get a feel for what speed works best to give a smooth coat. Also, I buy the best quality of T shirt material Lowes sells as it helps me get a smoother coat.) About every 5 minutes I apply another coat for 5 or 6 coats. If it is warm enough, you can sand the sealer down in less than a hour, as long as it sands to dust. I run through all 9 grits of micro mesh until I get a smooth and shiny coat.
Then, I do the same thing with the gloss, usually applying 6-8 coats. The more smoothly you can put down each coat, the better. I leave this overnight (I love having two lathes!) and then go through the micro mesh grits again. Then it gets a light buff with TSW. I prefer to let the gloss harden a couple of days prior to assembling the pen.
That is about it, and it is worth every cent it cost you.