ANY program that has a mix in it because of your decision to do so, must be monitored closely by a competent coach who TRACKS your process, step by step. Here's why.
This Driveline business is just that, a business, and as such has certain limitations to it/them because of your independence. They - Driveline, has little if any control of your election(s) to inject other material/decisions (Tuff Cuff) on top of what they're doing. If everything is cleared by Driveline, then THEY SHOULD BE THE ONES ANSWERING YOUR QUESTIONS HERE, NOT US. Do you understand what I'm telling you?
Let me go one step further here. Your experiences are not all that unusual in the amateur world of conditioning. Your striving for something that requires a ton of cold hard cash to reach. Your benchmarks are in focus with matching wits with those who you either admire or want to be like - velocity gains being one of the top ten (10). Driveline and other service providers can only provide you with information and hands-on when your there WITH Driveline. All other particulars that come into play start to unfold AFTER you LEAVE Driveline and you're on your own. Self training in this sport has never been a favorite of mine, regardless of the method or methods. You shouldn't be your own trainer off line when others have a lot more competency and experience while doing that for a living. You've elected to use Driveline as a service provided - THEN USE THEM TO THE FULLEST. Talk to those people about your conditions and how to avoid those conditions. That's what those people do for living - not you.
I have no thoughts on Driveline or any provider like them. It's up to you to sense the benefits and get your money's worth each and every visit. Again, talk and listen to the advice and experience of the competency and benefits of your purchases.