nlerner...I'm 100% sure that you're right and I'm also sure that the job and work involved is WORTH what the frame builder asked...but I think $50 is as much stupidity as I can justify just to use a specific headset. I'll call and ask what the cost is because I'm curious, but I've asked Bilenky about pricing on other jobs and I'd wager he's going to want $200 plus for this. He wanted over $100 just to add some threads to a steerer, and this sounds more difficult/pricey.