RS, the electra may weigh a little less but is not worth the price difference considering the tech on the inside is the same
no. only if the title of your paintball marker says "electra"
RSX, if im not mistaken the RSX has the new spyder balance valve (slightly less kick and better efficiency) and a regulator, electra, while nice is nowhere near worth the price tag since the tech in it is the same as every other spyder. Also look into the EW-1 it is very close to the RSX and electra (its actually a rebadged vs1) selling for $50 right now, eyes and e-frame stock and can work off co2 (no reg or balance valve though)
the Rs is a good reliable design.
performance wise, the ion, maintenance wise the electra, look into the ion xe, it has the same performance as the ion but the ease of maintenance of the electra
There are no stocks that fit that model spyder.
Spyder Games ended on 2001-09-20.
Around 5-6 lb
any Co2 tank and high pressure HPA tanks.
Yes.
5-6 lbs
yes
No, The Electra is Spyders "step up" from the victor. It is inside the same as the victor, but also has electronics and other features. The same with Tippmann, Azodin, and many other companies, they release a low, mid and "high" end gun together. The victor in this case is their cheapest and most "bare boned", then the Sonix, and then the Electra.