The last of my leased-in Steem expired last night. Now I am running on a bit over 100 SP. The rest of my Steem is leased out to others. Going forward, I think I will lease out 1000 SP and keep the remainder as my working Steem. It's tough to make any headway when you are underpowered. If the arrangement works out, then I will continue. Otherwise, I might have to change my ratio to 50% leased and 50% active SP.
Having leased Steem provides steady, predictable growth. An account can grow slowly even if you take some time off, with leased out Steem. However, having SP means that you can grow your account faster in those occasional flurries of activity that happen from time to time. Also, it doesn't help your favorite creators when your upvotes don't count for much. Therefore, I need to keep some unleased Steem.
Currently, I am locked in to some leases. Over the coming weeks, some of those leases will start to expire. I will be able to test the 50/50 mix first. A month of that should give me a good idea if it is an ideal mix.