You're getting quite good with cross+1 if you can do that in under 10 seconds. To be honest I have attempted cross+1 a few times, but have very quickly gotten frustrated that I stop and go back to just cross. Seeing that I could save myself a second or 2 at least by putting more effort into cross+1 I really should. I have a large 3 day competition in 2 months which I really want to do well at .... time to start practicing cross+1.Yesterday I did some timed solves until I felt like I was properly warmed up then did a session of 50 cross+1 solves with the normal inspection limit to get a current baseline. On good ones I'm 4-6 seconds, mean is ~7, and I bleed out as slow as 9-11 seconds with mistakes or ones I take forever to find the first pair. My best Ao12 was about a second faster than my previous baseline last summer and about a half second faster on Ao25. This will give me an indicator on progress as I start drilling and also shows that my best potential has improved by about a second and longer averages about a half second since last Aug just from organic improvement on cross+1 alone.
For first pair prediction drills I won't be timing and I'll use unlimited inspection, figure out the moves for the cross, then tracking a corner that will end up in the U layer, then track the pairing edge. I spent a couple days on this a few weeks back and tracking a corner was tricky and slow at first but I was slowly getting the hang of it after a little work. I'll also use this handy scrambler and start with 3 or 4 move crosses and ramp up the difficulty as needed: https://christianvaughngames.com/C2F2L
Along with the video @h2f shared, JPerm also has a "how to be sub 15" video that focuses on Cross+1. I think in both those vids he uses the method above for tracking but just using normal scrambles instead of easier cross scrambles.
The "next level" guys might have some things to chime-in with, among those active here @Selkie, @CLL Smooth, @Logiqx, and @JohnnyReggae come to mind, all of which probably have a lot more practice with it than I.
Thanks for the tips, they will help me