[mike31154]

+1 for the VorTech, and yes if you only intend on purchasing one of them you don't need the wirelesss features. This will save you a few bucks. An advantage of the VorTechs often overlooked due to the initial shock of sticker price, is the relatively low cost to upgrade the various components without having to purchase a whole new powerhead. The ES driver is easily ugraded to a W ES in the future by simply purchasing the wireless module which you can install yourself. You're not on the hook for a complete new driver.

You've seen one in action at J&L, I reckon once you decide to go for it and have it in your tank, you'll likely be looking to save up for a second MP10. With the features & options available by using two wireless pumps, there will not be a dead spot in your 40 gal square. Until you decide on a second one, you can always still supplement with your Koralias. I just don't like anything with a 120VAC power cord submerged in my system if I can help it.

EDIT: The battery back up is another feature often overlooked on these pumps. They can keep your system alive a lot longer than some AC pump on a UPS. With a little ingenuity and a few parts, you can build your own battery backup with a larger 12 Volt battery.