@SalutexMO Haven't tried those yet. How many are needed to +35 a 14 star?
I just did this to one of the Occuld weapons because I felt like setting this up. It took me about twenty-five of the EXP Weapon Mini's (about 250 Photon Boosters) and each weapon takes up 4,000 Meseta when used as part of the grinding process. This does not include the 100,000 Meseta and the resources to unlock and upgrade the potentials.
It is much more efficient on time and Meseta than using +30 Revolsio weapons with significantly less wasted experience and much cheaper costs. The only real problem you may run into is running low on Photon Boosters (which can be easily obtained).