If you can't commit to the time to work with your horse then improving your skills is still achievable through lessons on school horses, etc. However, learning better skills without making enough time with your horse will leave your horse’s education stagnant.
CORRECT VERSUS EFFECTIVE RIDING
HOW ARE CARS AND HORSES SIMILAR?
WHAT ARE YOU TEACHING YOUR HORSE?
TRAINING FOR SOFTNESS -Part 2
WHAT'S MISSING FROM THE GERMAN TRAINING SCALE?
The ideals of the GTS have a lot of merits and every horse in any discipline can greatly benefit from what it tries to teach. But without the underlying foundation of focus, clarity, and softness which underpin each element, it is nothing more than a series of mechanical exercises than has little benefit and bears little resemblance to good training.