soarpilot wrote:

I was wondering if anyone in the group has gone from Glider License
only to Single Engine Land licensing?

Yes.

Ease / difficulties to transition?

The first difficulty is to understand the concept of flying straight and
level and holding altitude. Once this step is mastered, then the next
challenge is to try to understand what the whole point of flying
straight and level is and fighting boredom.

Comments and recommendations?

Recommondation: Don't sell your glider too fast.