Final update on the 13 - I brought home the Wacom intuos pen for comparison and I found the the weight and general proportions are the same as the Kamvas Pro pen. I got into the driver settings and the latency I saw in my first 10 minutes of playing was much improved to the point I just don't worry about it. Wobble - none seen, I tried everything with the MacBook, rulers diagonal lines, zooming in with Photoshop and Medibang but I couldn't reproduce what Brad Colbow saw in his video. Build quality - amazing - especially the screen and other bits. The only thing I find difficult is the weight of the pen but the Dell Canvas pen has spoiled me. The screen itself feels great to draw on - the treated surface slightly dulls colours as any etching or other process would but it's a lovely surface to draw on. Finally on the positive and this MAY point out the lack of wobble is the Mac offered me two screen settings for the Pro 13 and the one I chose seemed to try and imitate an even higher res screen. Text, Photoshop icons etc all shrunk down but very visible - this may explain lack of wobble BUT I did zoom into the areas where I had drawn slow diagonal lines and there wasn't any huge difference. Wobble wasn't a huge factor. OK, the negative... I have a huge collection of empty A4 sketchbooks that I have either bought or more latterly been donated. It's just not a size I enjoy working at and the Pro 13 screen size unfortunately (for me) sits in that size bracket but with a slice cut off to make the proportion landscape. I just draw bigger, I love A3 paper, I also love working at A2 - these are my natural size. Put the same Huion technology and improvements found in the Kamvas Pro 13 into a 15.6 screen and you'd have to prise the tablet out of my "cold dead hands." So, knowing that the moment Huion release an improved 15.6 I would buy it and the 13 would sit collecting dust. I'm still in the returns window so sadly, it's going back. For anyone who works fine at the 13 size, I can't see enough faults to not recommend this tablet. For the price, it's outstanding.