I think - no.
It looks ot me as if Buddy is finally settling on the 1.2 and you are getting to see what it can actually do.
Also, Lev dosing is based on the lowest number in the cycle- the nadir or peak, not the highest.
Right now your lowest is 78 and that merits staying where you are with the 1.2 or lowering not raising the dose.
There are a few schools of thought on what to do where you are.
My personal action would be to lower the dose in order to lower the swing. I personally would rather have my cat go from 150 to 300 and back, than 50 to 400 and back. But that is me and what works for PK...he actually got a dose reduction earlier this week (see our last post for updated numbers) for this exact reason.
Others would call the 78 to 300 a bounce and say you are getting rebound from too high a dose and also suggest a dose reduction.
Still others would say that your Buddy is in liver training school and to rough out the bounces, tempering them with feeding (feed the lows to raise BG and even out the curve), or simply let them be experienced.
I'd suggest holding the dose for a few more cycles to see what happens, but see what others say. ;-)