A couple of awesome tips that I think will take your modified pentatonic playing to a whole new level by taking advantage of the different uses and applications that these awesome scales can have.
1. Choose a scale that works well in both relatives
2. Grab a pentatonic that fits well within multiple scales
3. Figure out modes within the pentatonic scales
4. Figure out different uses for these scale
I decided to go with the Min(maj7) to set the example since the Min(maj7) and Maj7(#5) create some of my favorite sounds. But you can create your very own personalized modified pentatonics and just apply the different steps to get the most out of them!