Their basicly the same both run unassigned code. JTAG is the old method but still good and RGH v1 and v2 are the newer methods of glitch. Jtag is just cables and RGH is TX Chips. In my eyes the same mate
rgh1 and jtag boots very quickly. jtags were for 7371 or lower dash and rgh1 is for above to 14719 the rgh2. ive got 2 slims rgh $180 each