I will have to say its the EF Yak 54 ... the H9 F90 is lovely but like they say ... there are structural issues. Mine had a few places with lousy fitting (the F40 has better wood and construction quality) and my pal's had broken ribs!

Velox is a nice plane that flies well, I just do not like the construction. I called the manufacturer for EF and they say NO MORE 68" Yaks available! They can send me the 87" though ... now this is most tempting!!!