Re: whats the deal with daisey chains??
There are two problems with daisy chaining pedal power, but they are both easily overcome.
1. The power supply does not deliver adequate current to power all the pedals. Solution: buy a power supply that has sufficient current to power all your pedals. The One Spot pumps out 1.8 amps (1,800 mA) and there are few pedal boards out there that would require more current than that. Delay and reverb pedals are always the biggest current draws, and they usually top out at 200 mA. Your typical distortion/OD pedal draws something in the neighborhood of 50 mA. As long as the total current draw of all your pedals is well under the total output rating of the power supply, you're fine.
2. Noise/hum issues that occur when two or more pedals are on the same power chain. There are some pedals that don't play nice with others when they're sharing power. Line 6 pedals are really bad for this, but there are no hard and fast rules. Usually you will find yourself with one pedal that introduces noise when added into the chain, but works fine on its own. The simple and cost-effective solution here is to determine which pedal is adding the noise by removing them one-by-one from the chain, and then isolating that pedal on its own power supply.