I usually deal with Jeg's only because I can remember their phone # (simple). I have heard of plenty of recent screw ups when dealing with Summit. This last week I had placed a simple 4 item order with Summit only because I had just read an article about how the Coughlins are just throwing mega $$ into NHRA Pro Stock and making it difficult for hard working racers to make a living, and it got to me.
I ordered; 2 fuel Jugs, a funnel, and a set of ultraseal V. C. gaskets. They billed me and indicated on the invoice that they shipped everything- but there were no Gaskets! I called and they said they would ship another set ASAP. We'll see! I have had great results with smaller outfits like Mancini Racing, Matrtell Bros, etc. It really depends on what you need.