Galvanic would be even safer for a DIYer. You perhaps can disable the thermolysis side of your unit and do pure galvanic. The margin of error is even less when doing galvanic as opposed to blend. Yes, thermolysis requires the most skill.
Just remember, you can still scar yourself with ANY MODALITY if used improperly.
Dee Fahey RN CT LLC
Licensed by the State Medical Board of Ohio for Cosmetic Therapy/Electrolysis and the State Nursing Board of Ohio