Well then the Sentra one shouldn't be hard to mod, because bar the lathe work to resess the shoulder by 3mm, it actually ran on the L for a day or 2 before I could get it to my dad. This is assuming thet the collet of the A is the same size of the Sentra one. I must appologise for not knowing the exact designation, but I will try to find out which it was. Have since sold the 1 tonner to fund my project I have listed elsewhere on this site.