George, You can see the position ,markers with the LED's off, but it's a little harder with the array on top of them. It's easier to refer to the front markers if your bass has oval inlays. But with the LED's installed, you won't want them off, trust me. Roz of FretFX says not to pick up the guitar by the neck so that the array doesn't get damaged. He recommends picking up the guitar by the horn. A Series 1 has little horn to speak of, but my Europa and Epic have a great big handle of a horn to grab. It's not a big problem to use the horn, just a minor change of habit. What I can tell you, is that the array is top notch quality, and will not degrade the value of your precious instrument. One of my first concerns with my Europa ( List over $8,000 now!) If you compare the cost to Alembic adding LED's after the fact this works out to less than 10% of that cost! Remember for Alembic to do it: Shipping costs round trip; cost of LED array (Red $1100. Blue $2500?) new fingerboard, battery compartment added on back with routing, door and a respray / refinish job. Yes, that's the Deluxe answer, but with the deluxe price tag too! For $80 bucks you can install it yourself, and be up and running in about a 1/2 hour. That's pretty cool. Worth a few minor changes in habit.
Kris
Kris