In order of importance
1. You're 70kg at 5'9
2. You've been training just 18 months and don't even know what sort of training really works for you yet
3. A tren only cycles is dumb as shit, enjoy having anxiety and no libido from being shut down
4. 10 weeks is too short to realise strength gains. A tren cycle at your level will give a shit load of rapid strength and mass gains but 10 weeks is not enough time for your body to get used to the gains so you will lose pretty much everything you gain
***EDIT***
fuck the HCGenerate and TestoRod right off and get actual HCG. if you don't know what it is, don't do a cycle until you do.
While i am somewhat inclined to agree with points one and two (and i do stress "somewhat"), points three and four are moot if proper HCG is taken with the cycle.
m3ld, if you are going to take a tren only cycle, up the dosage to at least 200mg per week, split into 2 shots per week. even though the half life of tren E allows you to pin once per week, pinning more often helps keep the levels more consistent, which many find helps minimize sides. also, taking your hcg shots 2x per week at 250iu should show the benefits as listed above. if you like, there is absolutely no reason why you couldn't go 3x 250iu per week, but i wouldn't go any less.
steroids also have a severe negative impact on cholesterol levels, so try to take 2-3g of krill oil daily, and 30+ml of unheated extra virgin olive oil. these things will both yield considerable assistance to maintaining healthy cholesterol while on cycle.
Tren is also know for producing progesterone related side effects. while taking t3 can help minimize this for some, it's safer to have some cabergoline on hand if you start noticing symptoms like sore/puffy nipples, and take 1mg eod.
you should also get full blood work done first to ensure everything is ok before you start. you should also be prepared for increases in blood pressure, and know what to look for and how to respond. you'll probably be ok at a low dose, but it never hurts to be prepared.
front-loading is also a good idea. it may cut your cycle a week short, but you will be getting the more from your tren from day one, as oppose to week 4ish. if you were to follow the dosage i outlined above, make your first shot triple what it otherwise would be (so instead of 100mg, make it 300mg), then continue every other shot from there as per usual (so all other shots are to be 100mg, as planned).
also, some people are of the school of thought that as excess estrogen is not an issue at the end of a cycle of a non-aromatizing steroid like tren, clomid n nolva are somewhat pointless as pct. PCT is still 100% necessary! as you will be taking the hcg throughout the cycle, and for 2 weeks after your last shot of tren, your recovery will be MUCH easier. you will still need a powerful means of boosting you test levels back to normal, so miss pct at your own peril.
as with anything else, make sure your are as well prepared, well informed n safe as you possibly can be!
hope that is helpful
this is what i removed. it may still be useful information for you:
as he's taking HCG throughout the cycle, it will mimic the action of LH and allow his body to continue to produce some test, so he will not be shut down. this will also allow him to maintain a lot of his gains as the hcg will prevent testicular atrophy and prevent leydig cell death, which is the usual cause of loss of gains as once the exogenous test runs out, the testes are producing none.
also, the small amount of test his body is producing naturally due to the administration of HCG will help minimize the usual tren side effects.