Frosty will be fine!!
however, I do not agree with your 1st statement regarding 1.1 vs 1.4 bar. As I said in my 1st post, ALL other factors being the same, regardless of what model turbos you have bolted on the side of the engine, you will require exactly the same boost pressure to make a given HP at a given RPM - regardless of whether that said boost pressure is at the bottom, top or middle of said turbo's compressor map - ie it doesn't matter if the turbos are flat out making, say, 1.4 bar or if it's in the middle of its range making 1.4bar.
Remember tho, this only matters for a "snap shot" - i.e. 1.4 bar of boost at 6000rpm makes 320atwkw on this motor - regardless of what turbos are making that 1.4 bar.
What WILL cause variance, is the how the turbos spool, their efficiency etc etc.
make sense?