It's quack potential is probably a little compromised because the way you oriented the bridge and neck pups, the two blades are not facing each other. I've read quack is maximized when the two pickups in question, are closer together. Interested to hear back what you find for quack performance. I've got a set of these i have been wanting to install in my Epi LP.
One supposed converse benefit to having the neck rail facing the neck lke you do, per a reviewer guy on youtube, is that that neck blade will sound "more like" a Strat neck position single (at least, when the PRail is installed in a Strat. Not sure how much so in a 24.75" scale. Maybe you can let us know).