I have run both. The non apply I ran for 20 years with no problem. If you are in 1st gear and let off the throttle you need to ease back in to it,don't slam it down or you could damage the low roller clutch. 2 years ago I changed to a LBA. A trans shield does not fit on my street car. It has gone 11.05 so I figured it might be a good idea. I can't get used to it on the street. When coasting down to a stop I used to shift to 1st. Now when I do it downshifts,NOW. Driven properly they both work. When racing, you really should have a shield. My new race car (should go low 9) does not have LBA but it does have a shield.
Doug