Ask 10 different people and you will get 5 different answers. While on the 18.9 DME ARC to intercept the LOC. When can you step down to 8900' from 10000'? After crossing the 350R or 357R from LHO?

http://155.178.201.160/d-tpp/1402/00663ILD17.PDF

I'm not sure if the link works. Sorry.