detune whole step 6 strings bass

Hello ! I recently detune my 6 strings bass (a luthier handmade bass in Marseille, France) and put on it new strings with bigger gauge to make tension be there despite the whole step down. So here is the gauge : Bb : 40 F : 50 C : 70 G : 90 D : 115 A : 145 It's GHS Boomers Strings It's a bit...