One of the reasons I prefer 505 over Sullivan's is the odor; 505 is much less smelly. However, you still want to have good ventilation when using it. Another good choice is Therm-o-Web, probably even better than 505. It comes out as a web so there is less overspray and I assume less volatile particles in the air.
I do not know of anyone who has gotten a gummed up machine needle from 505 or Therm-o-Web. I have read rare posts about gumming and/or discoloration caused by basting spray, but they were always off-brands and also often very old cans.