I have been holding onto 3 syringes of B+ for years. People say they are still good because I have kept them in a cooler for the whole time.

B+ is a great strain for beginners like you say, but it is also the perfect strain for microdosing, which is why I was growing them. For harder trips, I was growing Golden teachers, which I still have some spores for that too.

My buddy has been feeding me penis envy the last few times I have tripped. That's been fun to say the least, lol.