I’d like to share my 2 cents based on my experience.I have placed over 25 of the crossover bolts new and old style and believe they work very well. The newer version is definitely an improvement over the old one.
I’ve had mixed experiences with setting them. They tend to set fairly easily in about 80% of my placements. However, it can be challenging to pinpoint the exact causes of difficulty—factors like rock type, drill hole angle, type of drill bit, and hammer type all play a role. Additionally, the consistency of the crossover bolts may vary slightly due to their design and the way the newer version is shaped.
Anecdotally, I’ve found it easier to set the longer style of crossover bolts. Even in overhanging terrain, I haven’t felt the need to really drive them in; just one tap with the hammer ensures they won’t fall out or slide. I was using a stainless steal hammer for all of them.
I’ll provide some pictures to illustrate the differences between the new and old styles, including the shaved ends and larger clipping area