Thanks for your help guys. OK ...nice to skip to constructive advice again.
This forum, like many others, were instigated to help and assist those who are professionals and non professionals alike. Most of you guys had to learn, be it at college and/ or on site. If every professional refused to impart his knowledge and experience we would all be goosed hey?
This is my first post here and whilst I support you professional tradesmen protecting your hard earned experience, this forum is not limited to tradesmen and exactly the reason why I signed up here hoping for advice. After all isn't that what forums like this are for, sharing knowledge?
The renderer agreed to apply the second coat only. He advised 15mm beads but as in 'Dansouthcoadt84' the reason I asked is because there is a wider suggestion on this forum of bead depth from 6mm -15mm. The EWI has been glued and anchored to the brick at recommended positions, staggered and true'd vertically and horizontally. The mesh will be bedded in base coat, overlapped and strengthened at window reveals, doorways etc. Thanks to those that have taken the time to add your constructive advice. I appreciate and welcome your valuable observations.