I recently installed a tremelno on my ibanez rg7620 (7 string) and I tried to tune up from b standard to drop B. I took my top three strings and dropped them down to counterbalance the chang in string tension and raised the E, A and D strings up a step. However, when I trid tuning the upper strings up one by one the tremelno popped out. I put it back and it returned to normal though when I tuned down again.

If I put a 4th spring on the trem will this not happen anymore?