Few scenarios here as under :
1) I buy the stock and the market goes into correction.Here I will keep my stops at 25%.
2) I buy the stock,it appreciates by 50,60 or more % and then the market corrects before I see the stock has run its potential then I keep stops at important pivot levels which is at my buy price + 50 % of accumulated gains.So basically 50 % gains belong to me and I can risk the remaining 50 %.But I am happy to re-enter a good growth stock if warranted.
3) Market has gone up very steeply and I get a Sequential or Combo sell signal,I will sell and look for a better entry points.
The above has helped me over the years in my long term investments....stoploss could be deep but we must have stops to protect our wealth.
Smart_trade