Yea, the LHBS by me gave me issues, or thought I was getting in over my head when I moved to partial mash after 1 extract brew. Do your research online and on these forums...then walk into the LHBS and tell them exactly what you want.
I found a great LHBS in South Philly so I go there now. I dont know the forum rules, so PM me if anyone is in the area and wants to know where. I just went there a week ago. I brought in EdWort's Haus Pale Ale recipe and asked him to help convert it to a partial mash. I had a pretty good idea of what I needed already, but I wanted his input too. He didn't give me any problems and i got my goods!