Mike,
My straps have the "Y" setup with two points on the floor coming up to one connection at the buckle. It is much more preferable to the single strap up the middle to prevent submarining under your lap belt. While both prevent submarining, one puts pressure on the inside of your thighs and into the hips, the other puts pressure straight up the middle through the family jewels
.
You would probably need mohave the leather patch sewn on; I have not seen any newer models that way. Mine are pulldown, I do not know that there is any functional difference. I may try pull up next time I have to replace my belts as with my added side impact bracing the left had side lap is difficult to pull fully tight by myself due to the close proximity of the side bracing to the race seat.
Good luck in your decision making.
Jim