Hey Khaz, today I did rack pulls for 415 , 5 times...so I assume my lower back is strong enough for the measly 385 I'm getting stuck at. Is this true? I did deficit pulls at 225 , 10 times...was difficult after rack pulls but I felt that at times when it got harder, I tried to do the next rep much faster and the weight went up easier...is it maybe because I'm exhausting myself by not pulling fast enough?