I am one of those who is really partial to the Sig 4 * series. They are a straight forward build that incorporates several build methods and concepts. There is a 40, 60 and 120 size so you can go big or small. All are easy to set up for 2 or 4 strokers, the 120 is easily adapted to gas, and all can be electrified easily too. There are numerous build threads and modifcations to spice them up. Very stable flyer with solid basic aero capabilites.

Great way to get your building legs under you IMHO. Am sure the others mentioend above will be too. With five ARFs under your belt I assume you could easily handle the Somthin Extra or any of the suggestions.

Eric