Attacking from the Pinch Mount is an advanced option. The new angle of attack can expose the armbar and collar chokes. However, there can be an opportunity for the opponent to escape if they can pass your far leg over their head. Countering it involves staying mobile and disabling the lever of their arm by focusing your weight on to it. Finishing the strangle can be done any number of ways.
​Technical Level: Advanced

A well defended technical mount can be difficult to attack, especially if you don't have any grips on the collars. The weaknesses can be the tips of the elbows used to lever out and isolate an arm. Combined with using the legs to trap the support arm it's possible to find an armbar and/or a reverse triangle from this position. 
Technical Level: Advanced