I really don't think it much matters...

In the 80's I was flying single-stick and in the top of the advanced class continually and moved into masters.

A few years later single stick radios were hard to find and I went with the mode 2 standard. It took only about 3-4 months and I was right back at the same level.

I think the best thing you can do, either way, is put in heavier springs for better stick feedback and start burning fuel...