Raul, I found my sabaras averaged over 7 years until they fruited, grimal about 1 year less, vexator about 4,red hybrid 3 and escarlate about 2.5 if I remember correctly.Escarlate fruits numerous times in a year often flowering again while it has developing fruit. Sabara and red hybrid also fruit multiple times a year.
Recher the vexator was not astringent at all.