I also like the Hi Mtn product and use their Cajun blend all the time. I use eye of round as well and use a slicing board to cut them lengthwise to about 5/16 thick making long slices. I leave them as slices and then apply the seasoning & cure, put them in a zip lock bag and let them cure for a day or two. After they're cured I set my FEC to 170 and let them cook for 4 - 5 hours. I don't like mine as dry as a lot of folks so this produces what I'm looking for. When they're done I cut the planks across the grain into about 2' wide strips. Last step is vac seal them in 4 oz bags and start passing out to friends/family with the balance going in the fridge. I'll add that since I don't dry mine out as most do you might want to freeze them if you're not going to use in about a month.
I forgot to add that I bought some of the wire mesh screens they use to drain fried foods on from a local restaurant supply stores. The ones I got are for full size sheet pans and I had to trim them a little to fit the fec. I place the meat on these and then stack on top of each other. I usually don't stack any more then 3 at one time. When done I give them a coat of PAM and just leave them in the cooker