Hi all, as discussed at the meeting I performed the systematics due to the exclusive b->ulnu BRs varying separately the pilnu and the rholnu contributions instead of varying all the exclusive components of the same relative amount. These are the results: test BRBR BR(B0->pi+lnu) +30% && BR(B+->pi0lnu) +30% - 1.7% BR(B0->pi+lnu) -30% && BR(B+->pi0lnu) -30% + 2.0% BR(B0->rho+lnu) +30% && BR(B+->rho0,omegalnu) +30% - 0.5% BR(B0->rho+lnu) -30% && BR(B+->rho0,omegalnu) -30% + 0.8% BR(B->pilnu) +30% && BR(B->rholnu) +30% - 2.5% BR(B->pilnu) -30% && BR(B->rholnu) -30% - 2.8% as a crosscheck I tried to remove all the remaining exclusive compenent (not yet observed decay modes) BR(B->Xlnu (not pi and rho) -100% - 5.8% and it seems to go in the opposite direction but explanes why the hybrid and the non resonant model give then similar results (something like a compensation). Quoting this difference as systematics probably would be too conservative since it implies that we don't use at the theoretical information about eta, eta' , a1, b1 , f1 lnu decays. I propose to quote a simmetric syst uncertainty of 2.6%. Together with the systematics due to the fit using the pure non resonant model it gives us a systematics of ~4% that would be conservative. Daniele