I was thinking about these and am not sure which is the best strategy so here is my idea. Take the TQQQ and LABU which IMHO, the long term trend is up. Since that is the case, should one try for the most premium or just enough to cover the cost of the leaps by the expiration. SO I am going to try both in LABU.

I have bought the 2020, 84.87 leaps at 27.15 and sold the short calls for 8.80 out to July 20, but I am short the 86 calls and now need to keep rolling them but, it is hard to get a better strike price and premium.

Today, even though my timing was horrible,  I bought the 115 call and sold the June 29, 129  calls for .83 cents which is just enough to cover  the weekly . I will try to get a better strike each week and if the long term trend remains up, I should make nice profit faster than the first trade.