I had a similar experience with Clampett doing my 402 rating in Lae. We flew down what was remaining of the runway in "Ground Effect", we then did a shallow descent (good thing there was not high truck passing on the road) then we flew in what you could describe as "Water Effect" for a long way before we started a shallow climb. An interesting lesson in what the aircraft would do at altitude or with a load
. No point in fighting the inevitable.