While testing the MLAstro SHG (125/125 configuration) I couldn't help but be impressed with the size of the filament currently visible.
I've been observing the Sun for over 25 years - With no loss of eyesight
and this must be the longest filament I've seen.
The visible surface of the Sun is about 2.2 million Km in width (half the solar circumference), based on that, I think the filament is about 3 million Km in length.!!
Certainly a time of solar maxima....
I hope you also get the chance to image this enormous filament.
(I think the "gaps" you see are due to the Doppler shift where the filament is in strong upward/ downward motion)
Ken