If you have some tuning skills, you should be able to deal with the DP if your drive train setup is close to needing a DP carb. What converter, gearing/rear tire size? If you have a stock converter, 28"+ tire, and 3:23 gears, then you may not like the DP carb.
I run a QF DP carb and I like their secondary linkage setup. You can adjust them for 1:1, 40% and 60% delay. If you use the 60% delay, that gives you a little more throttle before the secondary jetting/pump kicks in. I use the 40% for reference.
Please keep in mind. You can tune a DP carb to have the same throttle response/fuel mileage of a vacuum secondary carb as long as you stay out of the secondaries. This is where the 60% delay linkage will help you out. If you decide to keep the DP and tune it, then I would suggest using the smallest (or slowest) secondary pump cam (pink or black) and squirter to start out. If that is still too much fuel, you can even adjust the secondary pump screw to have an "air-gap" to also help lower the volume of fuel if required. I have done this in the heat of the summer to keep the A/F ratio happy when the secondaries kick in when just cruising around and then go to 100% WOT.
It just depends on how much you want to tune and how stock your existing setup is and if you have any future performance upgrades that might be able to take advantage of the DP carb.
