I've played Gerold's WRAPS, HELIX and J-ROQUES. On my bass the J-ROQUES are hands down the best strings I've ever played! I came from playing Pirastro Chorda guts, which I loved until I put the J-ROQUES on. They have the best qualities of gut strings - playability, tone and feel, while being as stable as steels with tuning. They also have a top end/midrange articulation that guts always lacked for me. As far as string tension goes on my bass from tightest to loosest - WRAPS, HELIX (smaller gauge) and J-ROQUES. Hope this info helps someone on the string quest!
Can you provide a photo of the strings on your bass?