Hi Blade! Great question to ask and important for the community to understand the answer to.
You are indeed correct. The primary difference with the Styrde nail is that a person can place 100% of their weight on the nail and not worry about the nail breaking. Other than this difference, the Precise 2 and Stryde are quite similar.
To clarify where I am at in terms of standing and walking, with the Styrde Nail.... I am able to stand straight up and down for probably a half hour or longer, full weight-bearing, unassisted, meaning no walker or anything to support me, before having to take a brief rest. Then I can stand again with no issue, unassisted, after that rest. When I am taking steps on the walker, I have both hands on the walker to help me maintain my balance; but I do not have to place weight on the walker and I am able to take steps forward. The walker allows me to to practice my walk/gait training, safety. Right now, the muscles in my legs, especially my hips and glutes, have some training to go before I am able to fully balance and support my legs in order to walk without risk. What the Stryde nail does, which is essential, is allow me to place full body weight while performing steps with my walker, and these nails also allow me to stand up, unassisted, to do routine activity items such as brush my teeth, take a shower, prepare food, etc. The time at which each person can take natural, strongly gaited steps with Stryde will depend on each individual case. In my case, I have had to nurse my weaker left leg; so taking unassisted steps will take a bit longer for me. With that in mind, I am still able to and being encouraged by Dr. M and others to walk, full weight-bearing; but use the walker to support my balance as to remain safe. I hope that makes sense. Now that my left leg is coming around, I feel pretty strong that I'll be able to practice some unassisted steps this month if it feels safe enough.
With this in mind, I would strongly recommend, that anyone considering the internal nail opt to go Stryde nail. The ability to walk unassisted after the first month or so will vary from case to case but; the new nail allows you to leverage the walker or crutches almost immediately. You're immediately mobilized for the most part. For me; I had to use the wheel chair for the first week due to the left leg being weak. By week 2, I was using the walker almost 100% and could stand on one leg unassisted for quite some time. When I use the walker, I avoid pressing down as to allow my legs to absorb and begin getting used to my body weight. It all depends on what your body can tolerate. Nice thing is that I'm able to fully weight bear, but require the walker for now. It's helping my legs get stronger and more flexible; much more quicker than precise 2.... Since those patients had to press down pretty strongly on their walker; avoid full weight bearing under any circumstances, and maintain a wheel chair for those initial 3 -4 months.
Hope this provided some more insight. I feel strongly that Stryde nail is worth the extra money under almost any circumstance.