My strategy has always been that once I reach 100% size on a position I will usually dedicate about 50-70% of it to swing trading. I will start to scale out of my position once it hits a 25% gain and usually go out some at 25%, 50% 90% and then hold the remaining portion long term. I then likely use those profits to buy back in on any pullback that goes 15-20% below my original position or if it has surpassed 100% gain I will look to renter on pullbacks to any support levels that have held up.