I just got back from some experiments with both cannards and wing spoilers (What are their names on a plane?). A bit of a breeze makes conclusions iffy but here's what I found. The spoilers do tend to control the tendency to roll over in a turn so that was nice. Angling the cannards down JUST a little helps reduce climb rate. BUt it doesen't take much or you get a nasty dive. I use doulbe face tape so I can take things off, change angles and configurations. I found that with everyting on the plane flew ok but some slower. Not as slow as the biplane and more fun then the biplane but not as a speedster like the mono wing without all the attachments. I don't know if it is a weight issue or an air flow issue. I'll let you guys play with it. Have fun. iIm trying to add a picture to this post to show both the modifications.