i think you could do a few things depending on your level of risk aversion to sides, mainly regarding your liver
Bridge:
Epi: 20/30/30/40
Hdrol: 0 / 0/ 0 / 75/ 75 / 100 / 100
- could extend an 8th week for hdrol, though running 8 weeks of a methyl, at one part stacked, may not be a great idea...hdrol probably will not give you optimal results with just 4 weeks...some would say this would be a weak stack and to simply drop the hdrol as it wouldnt do much...i think it could work depending on how you respond to the hdrol but not my recommendation
OR
I prefer this- great hardening/lean mass/strength stack...but it requires at least 2 bottles of hdrol i think
Stack/bridge transition:
Epi: 20 / 30 / 30/ 30 (or 40, up to you)
Hdrol: 50 / 50 / 75 / 75 / 100 / 100 / 100
- in this respect, Epi is kicking you off for the first 4 weeks delivering pretty fast/noticeable results while the initial low dose of hdrol saturates...by the time Epi is done, Hdrol will be ramped up to a higher dose and should have kicked in...this also gives hdrol a full 7 weeks to do its best
I say go with the stack/bridge transition if you have your support supps aligned...ive overheard some users saying that an hdrol/promagnon base may also mimic the effects a test base? not sure of the validity of this statement as im merely repeating what i heard but i would love to hear some experts chime in on this who have a better understanding of chemical nomenclature than i do