Based on the way they structured the Love deal I'd put it at close to a zero percent change they use the stretch provision on anyone.
Teams have to be under the apron of $129,817,000 after using the non-taxpayer MLE in order to get it. The tax line is at $123,733,000. When you factor in the full MLE amount, a team would have to have a salary below $121,356,000 (which is under the tax line) in order to use the full taxpayer MLE on hood. But the key to this is that with where the tax is at, a bunch of teams who could offer that amount won't - simply because signing Rodney Hood at the full MLE would put them into the tax. First, he probably isn't a guy worth starting the repeater tax clock on, and additionally, the Cavs may match it anyways.
There's not a ton of teams who can give him the Full MLE without going into the tax. In addition, a lot of those teams have a full 15 guaranteed contracts already as well, and would have to eat additional money beyond the $8.6m by waiving a player to open a spot. Not to mention the Cavs could match it anyways.
All signs point to him signing his qualifying offer of $3.4 million I'd say.