Have settled on Yonex Tour Super 850 Pro now as my control-oriented, low-powered multi. I like its durability, steady performance & tension maintenance, spin potential and good playability at lower tensions. (low 50s)
Was switching back to full multi again from poly & poly-multi hybrids after a wrist injury and tinkered with old PSGD for a while........PSGD played quite oK for me (felt the same after more than 15 years!), NXT Control was a very good string, but for me 850 Pro stood out in durability, tension maintenance and spin potential.
I remember trying RIP Control many years ago and had good impressions but just can't find it locally where I live now so settled on 850 Pro.
I've been impressed with the durability and performance of Yonex 850, too. When I picked up a 2nd hand pair of RDS 002 Tours a few years ago, one came strung up with 850 multi and I used it for several outings with no signs of the stuff fraying and breaking down. It was installed at a few lbs. lower than I would have liked it (just a little mushy), so I eventually cut that string out and swapped it for who-knows-what. While I had it though, it was hard to believe that it was a multi.
I've really enjoyed syn. gut, both 16 and 17 gauge, in my gear for a number of years. I string my own, so it's not too big a deal for me to use something that costs a little more, since I'm already saving a lot with home stringing. Even so, syn. gut has just been right for me as long as the tension is a little more snug in the heat and a little lower for colder conditions. Tecnifibre has been my favorite brand for a little while.
A pal in the tennis business handed off a few sets of Volkl Power Fibre II in 16 ga. to me last year, so I stashed them away in case I needed to give somebody a re-string with multi - I didn't intend to use it for myself. Then we got outdoors for coaching the high school boys team last month and I was hitting balls on some days with temps slightly below freezing. CLUNK!!! I usually drop tension 3-5 lbs. for colder conditions, but my syn. gut was still pretty harsh in my Volkl O10 325's and decided to sample the multi.
This stuff at 55 lbs. is running much better in two of my frames than one of the others (I have four of them) strung with 17 ga. syn. gut roped up at 52 lbs. I'm getting cozy feel, spin, control, and durability that I definitely didn't expect. Granted I'm rotating three different racquets here (just put this multi in a 2nd frame), but the Power Fiber II has been the hands down winner, at least in the chilly front end of our season. Maybe I'll need my syn. gut when it gets hotter outside, but right now I'm an entirely happy camper. It was well into the higher 60's last weekend and the multi still worked fine.
RIP Control is very decent stuff and it certainly goes for less per pack than a set of this Volkl multi, but I just checked the TW price on a reel of natural colored P-F II and it comes out to easily less than $10 per set. The natural colored reels are 720 feet, not just 660. While I usually don't look twice at the more expensive multis like X-One Biphase, I might just grab myself one of these reels in the not-too-distant future.
