I don't have experience with CTD but it sounds as though they are comparable to ProMag - certifiably pure junkEd Brown recently ran an exchange program. Replace old mag with an Ed Brown for $10 or $15 depending on model ordered. I had several old mags I couldn't depend on and exchanged them. Ed Brown and Wilson Combat have been the most reliable magazines I've used. I learned that CTD products were not worth dirt.
My last experience with CTD was yeas ago. They cancelled an online order on ammunition and then made it available again with a sizable price increase. I wouldn't order from them again if the price were one cent a round.I don't have experience with CTD but it sounds as though they are comparable to ProMag - certifiably pure junk