see this is why I come on here! cant beat knowledge from experience! and you hit my other thing I'm researching! VG's! A few people have said to me that given the shape of the drifter wing (being ribbed and not flat) that VG's wont really work. however my understanding of VG's (and this is what I'm looking into now, is homing that understanding) is that that's not how the really work. I am waiting for a few of my bush flying mates in Alaska to get back to me RE there views on it, as they already have extensive experience with them, though if there are people over here who could fill me in with an unbiased view I would really love to hear! would they work on a drifter wing and would they mount ok onto the fabric? As this would be the very first thing I want to try well before flaperons (they was a down the track idea anyway)
the take off method you mentioned Nev is exactly how I fly it, wheels off as early as I can to reduce drag while floating in ground effect and increasing speed as high as possible as soon as possible to be ready for a fast climb out for the first couple of hundred feet. Though I was hoping that the increase in lift may help get those wheels up that little bit earlier so I can work them with my ground speed to see if I can shorten the distance of that process. I have done it alot in other aircraft with standard flaps and a substantially more powerful engine (thats going back to the power thing you mentioned nev) and also like you said I have a feeling that the power on the 503 wont be great enough for it to really work effectively, though I just thought it may be worth a try. of course the other consideration is going to the larger engine, but From Waynes experience he felt that despite the the extra power of the 582, the extra weight is still going to keep you on the ground a tad longer anyway, and I know from experience that the 912 on the back is even worse again, the ground roll was quite a bit more than my 503.