The Sig 4*40 is good.
I am flying it for the last 10 days after mastering trainer and forgiving and good performance with 46FX. Did couple of inverted loops yesterday, I am not sure whether the "inverted loop" is the correct name though, pushing the down elevator while flying inverted and making a loop.
See,
http://www.rcuniverse.com/forum/My_n...1120607/tm.htm
Also Sig SE is recommended by others, but I beleive not as forgiving as 4*
http://www.rcuniverse.com/forum/Sig_...1124850/tm.htm