Since 2016 Spring, we have renewing the entire range of Fibo blocks. The main differences between the previous "generation" is a bulleted Appendix vertical in the joint.
These innovations can achieve much more than it seems, and the effect that you want to provide a constructor:
TAPP-Appendix Vertical joint works without mortar
Effect:
mortar and saving speed + typesetting wall keeping a straight line
fewer joints
smoother wall surface
finishing materials savings
Wall can be done more quickly and more favorably finished
design can handle even the person - no need to hire a builder