Hill Country bows are sensational! Top shelf craftsmanship and absolute performers. I held off for years trying many other makes and the first time I unpacked and shot my Bobcat I was floored. My Bobcat is as quiet as my Howard Hill but a blazer. It takes top spot for short longbows for me. I have owned two Toelke Pikas, an Elkheart, Shrew, Lil Slammer, Caribow Wolverine, two Thunderchildren, and the Bobcat has risen to the top simply because the 13" riser allows a grip shape and mass weight that the other bows cannot achieve due to design constraint. I still love and would gladly own any of those other bows, but if I could have only one I'd pick the Bobcat. I call the Bobcat a "baby Habu". The limbs are narrow and deep core but heavily reflexed hence the speed. The bow is a cinch to tune. Speed and forgiveness aside what impressed me most again was how ghostly quiet the bow is at 9-10 gpp.
You cannot go wrong with Romans bows. I have been sorely tempted to order a really long Wildcat for a dedicated 3D bow, but it's almost unnecessary as the little Bobcat is such a sweetie.
As for length, my 56" Bobcat/ 13" riser hits the wall about 30", so a Wildcat with 15" riser you'd probably want at least a 60-62" bow. I'd contact Roman to discuss.