Well I am not familiar with Dave's larger planes. I have heard all great things about those. Regarding larger Extras and Edges - I highly recommend the Yellow Aircraft Edge 540 T. Its 25%, very scale, and such an awesome flier. Its well built, but takes time to finish. I have a Roto 25 gasser in mine. It has unlimited vertical, but once you get lots of power you want more...so once I ger more funds thinking about a ZDZ 40 which should let me hover at 25% throttle and is about the same weight all up. Regarding other large Ultimates, besides DP. There is a 27% and 33$ from both World models and Aeroworks. Yeah I love these forums, found out the dirty details on everything!

Regards,
airborneSGT