If your Ringer allows you to open up the angles a bit, and you want the LT-48 for the same, I'd stick with a similar layout. I like pin down for your lower track.
The LT-48 is a GREAT piece, so drill it up. Take the surface to 500, then 1000, and finish it around 3000 for about 20 seconds each side on the spinner (with water). Surface will help it read the mid-lane and still finish.
On a side note, most people are adding too many "steps" before they polish the ball, unless you bowl on very dry lanes. If you intend to finish with polish (with your lower track) I'd seriously resurface your Versa Max and/or Melee at 500, Royal Compound (or Rough Buff) and try it. You can always add a step at 1000 if you want it a little less aggressive later. (If I ever had one at 500, 2000, 4000, PLUS polish it would go so long it would be for bowling on the "Sahara Desert" and would not get much use.)
The LT-48 is a real gem in my opinion, so put a tried-and-true layout on it then adjust surface to your taste. Again, I really love it without shine, but not too dull. Keep us informed.
EDIT: Is your span REALLY shorter from thumb to ring finger? Those pics appear that way, and although it's not impossible, it's not very common. The other thing is your inserts. Middle finger looks close, however, the ring finger typically should be turned slightly left (towards the center of span) so you come out of it cleaner and don't wear out the "side" of the insert. In other words, the middle finger should angle slightly right (towards center) and the ring finger slightly left (towards center). If you use the power lifts getting them lined up properly can really make a difference.
