Bars and signal strength are not necessarily related. The bar is just telling you what the software is interpreting, there have been tons of signal bar hacks that make it more or less accurate.
What I will say is that the LTE drops are something I've seen before even when I paradoxically had "full bars" on LTE only to suddenly have my phone not actually displaying a connection and then it would, after a moment, drop to H+.
So punish me for weakness, blame me for everything.
I don't like suffering, I like the sympathy it brings.