Bigsby B7 Vibrato Kit Alu

I bought this for my les paul and i will be taking it off when i get a chance. I'm not an expert but i think the string break angle is too much and the strings don't move through the saddles as they would on a 335 type guitar for example.
Tuning is very unstable and i was not being over the top with it. I'm not a floyd rose player who expects to be able to dive bomb and i appreciate that the bigsby is a subtle vibrato. Impossible to use at a gig without having to tune up between every song.
I bought a schaller roller bridge but this did not improve things greatly. The strings no longer hit the back of the bridge but it doesn't make a great difference.
Also the arm on my bigsby kept loosening and i had to tighten the nut quite regularly.
Bigsbys have been around a lot longer than i have and have been used on Les Pauls a lot so perhaps it was just my personal bad experience.