Hello; Yes I did mix up a gallon according to Lasers' instructions. I used Powermaster oil. I had to special order it, it was about $38 a gallon. I have a few litres of straight castor that I got when I bought an old Mills diesel, but I didn't use it.

the Taube is a "floater" that I could use as a slope soarer with 1100 sq. in. of wing area, and flies easily on the idle, and on the Laser the ilde is 800 rpm.

I like stooging around as close to the stall as I can, but other fliers on my frequency can get annoyed waiting for my flight to end.