I'm currently using Flexo Deluxe G/D and Spiro mittel A/E on my early 20th C 7/8 German bass, and while I love the sound and feel for jazz, and love the sound for orchestra, I'm starting to think I need to find something hover tension with faster bow response for the bottom two strings. Does anyone have recommendations for strings with similar tone/bite to Spiro A/E's but higher tension? This is strictly for orchestra playing (not jazz or solo)