Star Adventurer GTi at 714mm: Can It Handle a 102mm Doublet?

My first video pushed the Sky-Watcher Star Adventurer GTi to 96% of its rated capacity with the Apertura 75Q. You all said 303mm was too easy. Fair enough.This time: the SVBONY SV503 102ED at its full native 714mm focal length. Over 13 lbs of telescope and imaging gear on an 11 lb rated star tracker. 118% of rated capacity. Three-minute guided exposures on M51, the Whirlpool Galaxy.I'll cover everything it took to make this work: the Explore Scientific field flattener, why the Astronomik L-3 UV-IR blocking filter is essential on a doublet, the 8.5 lbs of counterweight needed to balance, the moment arm problem that longer scopes create on the DEC axis, the full PHD2 session analysis including the rough patches, and the final HaLRGB result.Plus three additional sessions showing consistent sub-arcsecond guiding at this payload. And a look at what's coming next.Equipment: SVBONY SV503 102ED (714mm f/7, S-FPL51 ED doublet) Explore Scientific 2" field flattener (f/5-f/7) Astronomik L-3 UV-IR blocking filter QHY MiniCam8 Mono with dedicated OAG QHY5II-L guide camera ZWO EAF SVBONY SV241 power hub Sky-Watcher Star Adventurer GTi Sky-Watcher 7 lb EQ series counterweight + 1.5 lb counterweight ADM Vixen saddle Leofoto LN-404C carbon fiber tripod Software: NINA 3.2, PHD2, GreenSwamp Server, PixInsightTotal imaging train weight: 13+ lbs on an 11 lb rated mount (118%+ capacity) #astrophotography #staradventurergti #skywatcher #svbony #sv503 #astronomik #explorescientifc #narrowband #deepsky #m51 #whirlpoolgalaxy #calibratedframes