I'm not disagreeing. I live both styles of cams. I collect cams and off the shelf definitely have potential that's for sure. However I just feel more comfortable knowing that it doesn't cost a penny more to have a cam company take time and find something that is best suited for me. Hell Jim at Racer Brown made a custom hydraulic roller for my stock piston, 500 cfm 2 barrel diet track figure 8 engine. Lots of lift but not too much duration so I could make the short stroke 318 breath and have torque coming out of the corners, .565 lift with 232 @ 050 on 106 lsa. It's basically and incredibly low budget high effort 318 that was very competitive against 400 sbc with 12k into their engines. Point being is that I was originally looking at very generic cams and just couldn't find something that would give me the top rpm I needed but torque for coming out of a sharp corner. I support all cams that's just my 2 cents