Bollinger Bands Settings

I been working with bollinger bands for a few weeks and looking at it’s potential in both day and swing trading. Rn I been getting some good results on the 5 minute time frame with default settings and for swing trading I been rocking a sma length of 50 with standard deviation of 2.5 or 3. Would love to hear anyone’s thoughts on which 2.5 or 3 would be better or any other tips.

PS. I use them in conjunction with support and resistance/ moving averages and volume with rsi divergence