My 2c would be to stick with what was included with your scope for a while. Go and meet a few star-heads and try out their EPs in your scope to see what otehr magnifications, AFOVs etc. work for your eyes. What works in terms of AFOV, eye relief etc. for one person will not necessarily work for another. I LOVE most of the things I look at using either 12mm or 20mm EPs. Magnification aside (depending on scope of course) they just always seem to give me the aesthetic that I like. Many of my friends are for more finicky and spend ours tabulating EPs and magnification for each individual scope..and AFOV and TFOV etc. etc. ....nuts to that, I like to LOOK.