Originally Posted by PeterVRC
Tell him to raise the nose gear length a bit. That would be better. A few degrees AoA makes a lot of difference to a plane taking off.
I bought the ARF so I could make it a hand launcher, but I would still buy ARF even if I was doing retracts because of all the other 'own choices' you can make, but also to use decent retracts. There are a lot of stories of how lousy the stock retracts are - unreliable - and I have seen a PNF in the flesh myself doing that right from new. First few cycles on the bench and one main didn't operate reliably. And almost every flight - and if down it would collapse anyway. And as mentioned, lots of people having that issue. Cheap metal trunion PZ's are fantastic ($10 ea) and it seems Durafly/FMS chose a very budget version of those to use.
It wasn't just the take-off, it pitched nose down in flight when the throttle was opened. Have to say, the stock retracts have been bullet-proof so far.