What's the best gel to use for nail extensions?

[NailsbyMP]

I have worked with CND, Calgel and IBD. But very open to trying new systems.
I am looking for some advice from you lovely lot, please take into consideration such things like-
Application ease
Application time
How wearable and durable it is
Removal time
Price (to us as nail techs)

All advice and opinions are very welcome and greatly appreciated! Thank you!
-Megan x