I'm in the market for a pair of strobes, and I'm somewhat torn between the DS51's and the DS125's. I like the smaller size of the 51's for traveling, but I am not a fan of carrying around a bunch of AA batteries all the time, and I'm told the modeling lights on the DS125 are bright enough for some casual video shooting.
I have read that the 2500-5000 serial numbers on the DS125's require an upgrade from Ikelite for like $100 in order for the TTL to function on the newer cameras (again, 5d mk2 here). From what I've been reading though, it sounds like people have used them without much issue.
Anyone on here have any experience with this range of serial numbers and shooting? Does the TTL work at all? Mostly? Does it just blast 100% all the time?