Exit or no exit? As long as the animal goes down quickly I don't much care. It took me over 20 years to catch a 160g 7mm Speer Grand Slam. When I did it was because both shoulders had been wrecked and the bullet was peeking out of the bone on the far side.
Have yet to recover a tipped X bullet and I've been using them since they came out. A tad over 50% DRT, a couple antelope running for a few seconds and the rest taking no more than a few steps.
North Fork is out of business but I have a lot of their bullets and have recovered them in 7mm RM (went the length of a mulie buck) and .308" (broadside on an elk at 25 yards), and .458" (6x6 bull broadside at 213 yards, obliterated a section of the near-side front leg and a near-side rib, shattered a far rib). I've also had them exit with a resulting massive loss of blood. They work both ways.
My preference for bullet performance runs a different direction than exit or not. What I want is a bullet that expands in a reliable but controlled manner (high weight retention) across a wide range of impact velocities. Bullets that come apart like a grenade are fine for varmints when you don't care about the hide, but they are not what I want for big game. Bullets I've been very happy with include Speer Grand Slam (old style core as well as the new style), Nosler AccuBond and ABLR, North Fork SS and FP (and HP prototypes), Barnes MRX, TTSX and LRX and Swift Scirocco II.