We have adopted to use your coupler system at our Ryman Petone site and we are very pleased with the product.
The structure is a Base Isolated building which utilized custom made 1200mm wide shell beams over the isolators.
The moment demand on these beams is significant and required a very heavy content of reinforcing which resulted in congestion, numerous laps and very difficult detailing.
The use of the couplers made all these aspects far easier resulting in a very elegant solution.
We have decided to use the same system on the remaining buildings on site to be constructed in the future.
MV Engineers - Auckland