I've got zillions, alphas, ss air tw, just sold off my bfs slx/curado. Knowing what I know now if I was starting from scratch I would stay away from out of the box bfs reels unless you are planning on trout or panfishing or going really light, like under 1/8oz which that rainshadow blank won’t handle anyhow. I have one of my alphas svtw’s setup with a kkr spool (I have a rays studio sv spool enroute too) and roro bearings that I like as much and performs just as well on a medium light/fast rod as the one trick pony, albeit a very good trick, ss air tw which will cost you at least a hundo more. I’ll dabble with converting a zillion to bfs at some point too which bulldog has proven is a formidable bfs platform. My point is that the alphas and zillion is much more versatile and fun overall with the plethora of parts, spools, and high performance bearings available, and can be returned to stock should the need arise.
Of these the alphas svtw 800 (my favorite) is the most compact even over the the ss air despite what daiwa implies. I was surprised when I received it to find that it feels a smidge taller and fuller in hand (steez based frame) than the alphas, but in terms of weight the ss air is the featherweight champ with the zillion even bigger and heavier than both. I’ll be perfectly content with the alphas and zillion one-two punch for the foreseeable future, which between them can be setup to handle everything from bfs to punching.