Hey, no problem. When you get to the top tier of IEMs in which any of the top universals (SE530, TFP, W3/UMX3, IE8, MTP, and a few others), it comes down to personal preference on sound, build quality, fit, etc. Nothing is perfect, but all are very good for what they do.
I have posted a few comments of the MTP and the IE8, both of which I really like. To me, they can be condensed to this:
IE8: Superb soundstage, great spectrum with a bit of a mid-bass hump, but excellent mids and treble, with a great replaceable cable. Fit may be an issue for some, and it appears you have to wary of counterfeits. All-in-all a very very good IEM. Bassy? More warmth to me that calms down over time and provides an unmatched soundstage. The TFPs are airier due to their extremely detailed and delicate treble, but with their recessed mids, they don't cover the spectrum as well as the IE8s.
MTP: Flat (even for the Gold version I have), but extremely extended in the bass without being boomy, and a very natural mid/treble that seems better detailed and extended in the high-end possibly due to the controlled bass. The MTPs seem to have improved on Shure's midrange, which tends to become fatiguing to me. The build quality is a major improvement over the original Turbines (which I still use regularly). Instrument separation is excellent, but that does not necessarily translate to a very large soundstage. I've said it before, these capture timbre and sonic characteristics of acoustic instruments like no other IEM I have tried (I wonder how the AT CK10/CK100 compare), and reproduce electric guitars like Grados (nothing comes close except the original Turbines).
If replaceable cables are important, go IE8. If soundstage is important, go IE8. For electric guitar, go MTP. If accuracy, probably the Gold MTP would work, possibly the Copper (but I haven't heard them yet). For acoustic or jazz music, my initial preference would be the MTPs, but the IE8s are not deficient here. It may come down to how important accurate timbre is to you (if it is, go MTP). For deep deep accurate bass, my current recommendation is to go with the MTP, but again, the IE8s don't disappoint me here.
Like everything at this level, YMMV. Hope this helps.