Go with the one you like the best.I was told by many how hard the corsair would be to build and that they had never seen one fly well at all.Well,I wanted the corsair so that's what I went with.Full complement of flaps,cockpit kit,full pilot,dummy engine,robart retracts and struts.Also used an o.s.91fx engine and a 14/8 three blade prop.Came in at 10 pounds and 3 ounces. Flies very well,but I would be scared with less power.This bird can be built at a good bit lighter weight but if you build strong and power adequetly,you will be fine.Retracts take a while to install and get to working correctly.Good luck.Build what YOU want,not what someone else talks you into.Tivey