Stall converter recommendations

I got the TCI StreetFight 10 inch. Its great imo. Feels part throttle tighter than the TCI breakaway I used to have. Trans guy agreed with me, says its a better converter all the way around. Also told me its better to go with $500 converter than those $300.

Haven't run through the gears yet, got only 75 miles on it but today in 2nd gear on a two lane road I go to pass at 35 mph-with 3.91 gears, manual valve body. Darn thing pulled so hard I went on the shoulder on the other side of the road, ha ha. Just the two tires on the drivers side of the car People must have thought I was drunk, lol . Didn't lose control and was just one vehicle I passed, put on a scene none of less