Stickman here. Yes the lipo's are legit. They are my newest product and come in 5000mAh 25C and 3700mAh 20C. They are imported from the same manufacturer as many others including trinity. They have tons of battery building experience trust me.
I had 4 made and tested them extensively before releasing them to the public. I have been running both packs in my Slash at local races around GA and have not been outrun by anything else. I post equal lap times as the best here and its just my inconsistant driving that keeps me from winning. I can keep up with 35C Losi packs and Reedy packs.
This past weekend at the first GA Champ series race the Slash Class was very tight racing. Who came out on Top. Kent Darley, running a 5000mAh Stickman Pack. I came in 4th with mine as well. Thats 2 of the top 4 running the Stickman Lipo. The race was 10 minutes and the power never faded a bit. Lap times were as good or better as the race went on.
If you have any questions or concerns about the batteries or are interested in a fine balance charger that goes perfect with them let me know. Visit the website for specs and send me an e-mail on the contact page if you have any questions. www.stickmanrc.com